Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-14T07:23:36.899Z Has data issue: false hasContentIssue false

Diverse Economic Patterns in the North Baltic Sea Region in the Late Neolithic and Early Metal Periods

Published online by Cambridge University Press:  22 July 2019

Mirva Pääkkönen
Affiliation:
Department of Archaeology, University of Turku, Finland
Elisabeth Holmqvist
Affiliation:
Collegium for Advanced Studies, University of Helsinki, Finland
Auli Bläuer
Affiliation:
Natural Resources Institute Finland, Turku, Finland
Richard P. Evershed
Affiliation:
School of Chemistry, University of Bristol, UK
Henrik Asplund
Affiliation:
Department of Archaeology, University of Turku, Finland

Abstract

Over 120 prehistoric pottery sherds from mainland Finland and the Åland Islands in the north Baltic region were studied for their organic residue content. Preserved fat residues found in these vessels indicated that the food procurement pattern was broad during the Neolithic and Early Metal periods. Based on previous research and these results, it appears that animal husbandry came to Finland with the Corded Ware culture. Groups using the succeeding Late Neolithic Kiukainen Ware did not, however, practice animal husbandry to any great extent, as there is an indication of dairy fats in only a single sherd. In general, even after dairy farming arrived in the area, prehistoric groups in southern and south-western Finland continued or returned to a hunter-gatherer lifestyle. During the Early Metal period, animal husbandry increased in importance among the groups living in the area, and the level of dairying then intensified.

Cet article présente les résultats d'un e analyse des résidus organiques conservés dans plus de 120 tessons de céramique préhistorique provenant de la Finlande continentale et des îles d’Åland en Baltique du nord. Les résidus de matières grasses qui ont survécu dans ces récipients indiquent que l'approvisionnement en nourriture se faisait sur un large éventail pendant le Néolithique et au début des âges des métaux. Notre analyse ainsi que des études plus anciennes révèlent que l’élevage d'animaux domestiques gagna la Finlande avec la culture de la céramique cordée. Les communautés utilisant un type de céramique néolithique plus récente nommée céramique de Kiukainen n'ont cependant pas pratiqué l’élevage du bétail à grande échelle ; un seul tesson dans notre échantillon indique la présence de matières grasses provenant de produits laitiers. En gros, même après l'arrivée de l’élevage laitier dans la région, les groupes préhistoriques du sud et du sud-ouest de la Finlande ont continué à suivre (ou ont repris) un mode de vie de chasseurs-cueilleurs. L’élevage prit plus d'importance parmi les communautés de la région au début des âges des métaux et le niveau de la production laitière s'intensifia. Translation by Madeleine Hummler

Die Ergebnisse einer Analyse von organischen Reststoffen, die in über 120 urgeschichtlichen Keramikscherben aus dem finnischen Festland und den Åland Inseln im nördlichen Ostseeraum erhalten blieben, werden in diesem Artikel besprochen. Die Fettreste in diesen Gefäßen weisen darauf hin, dass die Nahrungsbeschaffung im Neolithikum und am Anfang der Metallzeit auf einer breiten Basis beruhte. Unsere Untersuchungen und frühere Studien zeigen, dass die Viehwirtschaft zusammen mit der Schnurkeramikkultur Finnland erreichte. Die Gemeinschaften, welche die nachfolgende spätneolithische Kiukainen Keramik benutzten, haben die Tierhaltung aber nicht maßgeblich betrieben: Ein einziges Fragment unter den untersuchten Scherben enthielt Milchfett. Im Allgemeinen behielten die Gemeinschaften in Süd- und Südwestfinnland eine Jäger-und-Sammler-Wirtschaft oder nahmen sie wieder auf, auch nach der Einführung der Milchwirtschaft in der Region. Während der frühen Metallzeit gewann die Tierhaltung in den Gemeinschaften der Gegend an Bedeutung und das Ausmaß der Milchwirtschaft verstärkte sich in diesem Zeitabschnitt. Translation by Madeleine Hummler

Type
Article
Copyright
Copyright © European Association of Archaeologists 2019

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ackman, R.G. & Hooper, S.N. 1968. Examination of Isoprenoid Fatty Acids as Distinguishing Characteristics of Specific Marine Oils with Particular Reference to Whale Oils. Comparative Biochemistry and Physiology, 24: 549–65. https://doi.org/10.1016/0010-406X(68)91008-6CrossRefGoogle ScholarPubMed
Ahola, M., Kirkinen, T., Vajanto, K. & Ruokolainen, J. 2018. On the Scent of an Animal Skin: New Evidence on Corded Ware Mortuary Practices in Northern Europe. Antiquity, 92: 118–31. https://doi.org/10.15184/aqy.2017.188CrossRefGoogle Scholar
Alenius, T., Mökkönen, T. & Lahelma, A. 2013. Early Farming in the Northern Boreal Zone: Reassessing the History of Land Use in Southeastern Finland through High-Resolution Pollen Analysis. Geoarchaeology, 28: 124. https://doi.org/10.1002/gea.21428CrossRefGoogle Scholar
Alves, E.Q., Macario, K., Ascough, P. & Bronk Ramsey, C. 2018. The Worldwide Marine Radiocarbon Reservoir Effect: Definitions, Mechanisms, and Prospects. Reviews of Geophysics, 56: 278305. https://doi.org/10.1002/2017RG000588CrossRefGoogle Scholar
Asplund, H. 2004. Problems of Pre-Roman Iron Age Radiocarbon Dating – An Example from SW Finland. In: Uino, P., ed. Fenno-Ugri et Slavi 2002. Dating and Chronology. Helsinki: Finnish National Board of Antiquities, pp. 914.Google Scholar
Asplund, H. 2008. Kymittæ. Sites, Centrality and Long-Term Settlement Change in the Kemiönsaari Region in SW Finland. PhD disstertation, Department of Archaeology, University of Turku. (Turun Yliopiston julkaisuja/Annales Universitatis Turkuensis, Series B vol. 312). Turku: University of Turku. Available at: <http://urn.fi/URN:ISBN:978-951-29-3628-1>>Google Scholar
Asplund, H., Formisto, T. & Illmer, K. 1989. Kotirinne—A Late Neolithic Mixed Farming Site: Osteological and Chemical Investigations at the Kotirinne Dwelling Site at Niuskala, Turku, SW Finland. Norwegian Archaeological Review, 22: 119–29. https://doi.org/10.1080/00293652.1989.9965498CrossRefGoogle Scholar
Avigan, J. 1966. Pristanic Acid (2, 6, 10, 14-tetramethylpentadecanoic acid) and Phytanic Acid (3, 7, 11, 15-tetramethylhexadecanoic acid) Content of Human and Animal Tissues. Biochimica et Biophysica Acta (BBA)-Lipids and Lipid Metabolism, 125: 607–10. https://doi.org/10.1016/0005-2760(66)90051-8CrossRefGoogle ScholarPubMed
Bläuer, A. & Kantanen, J. 2013. Transition from Hunting to Animal Husbandry in Southern, Western and Eastern Finland: New Dated Osteological Evidence. Journal of Archaeological Science, 40: 1646–66. https://doi.org/10.1016/j.jas.2012.10.033CrossRefGoogle Scholar
Bronk Ramsey, C. 1995. Radiocarbon Calibration and Analysis of Stratigraphy: The OxCal Program. Radiocarbon, 37: 425–30. https://doi.org/10.1017/S0033822200030903CrossRefGoogle Scholar
Bronk Ramsey, C. 2001. Development of the Radiocarbon Calibration Program. Radiocarbon, 43: 355–64. https://doi.org/10.1017/S0033822200038212CrossRefGoogle Scholar
Brorsson, T., Lucenius, J. & Stenbäck, N. 2019. Kulturella influenser på Åland under stenåldern – exemplet kalkmagring i keramiken. Åländsk Odling, 2018: 95105.Google Scholar
Copley, M.S., Berstan, R., Dudd, S.N., Docherty, G., Mukherjee, A.J., Straker, V. et al. 2003. Direct Chemical Evidence for Widespread Dairying in Prehistoric Britain. Proceedings of the National Academy of Sciences of the United States of America, 100: 1524–29. https://doi.org/10.1073/pnas.0335955100CrossRefGoogle ScholarPubMed
Correa-Ascencio, M. & Evershed, R.P. 2014. High Throughput Screening of Organic Residues in Archaeological Potsherds Using Direct Acidified Methanol Extraction. Analytical Methods, 6: 1330–40. https://doi.org/10.1039/C3AY41678JCrossRefGoogle Scholar
Cramp, L. & Evershed, R.P. 2014. Reconstructing Aquatic Resource Exploitation in Human Prehistory Using Lipid Biomarkers and Stable Isotopes. In: Holland, H. & Turekian, K., eds. Treatise on Geochemistry. Amsterdam: Elsevier, pp. 319–39.CrossRefGoogle Scholar
Cramp, L.J.E., Evershed, R.P., Lavento, M., Halinen, P., Mannermaa, K., Oinonen, M. et al. 2014. Neolithic Dairy Farming at the Extreme of Agriculture in Northern Europe. Proceedings. Biological Sciences/The Royal Society, 281: 19. https://doi.org/10.1098/rspb.2014.0819CrossRefGoogle ScholarPubMed
Deckwirth, V. 2008. Tutkimuksia Suomen rannikon kulttuuripiirin varhaismetallikauden karjataloudesta eräiden asuinpaikkojen arkeo-osteologisten aineistojen ja vertailualuiden tietojen valossa. Unpublished Master's thesis, Helsinki: University of Helsinki.Google Scholar
Edgren, T. 1999. Alkavan rautakauden kulttuurikuva Länsi-Suomessa. In: Fogelberg, P., ed. Pohjan poluilla. Suomalaisten juuret nykytutkimuksen mukaan. pp. 311–33.Google Scholar
Eriksson, G., Linderholm, A., Fornander, E., Kanstrup, M., Schoultz, P., Olofsson, H. & Lidén, K. 2008. Same Island, Different Diet: Cultural Evolution of Food Practice on Öland, Sweden, from the Mesolithic to the Roman Period. Journal of Anthropological Archaeology, 27: 520–43. https://doi.org/10.1016/j.jaa.2008.08.004CrossRefGoogle Scholar
Evershed, R.P., Arnot, K.I., Collister, J., Eglinton, G. & Charters, S. 1994. Application of Isotope Ratio Monitoring Gas Chromatography-Mass Spectrometry to the Analysis of Organic Residues of Archaeological Origin. Analyst, 119: 909–14. https://doi.org/10.1039/AN9941900909CrossRefGoogle Scholar
Evershed, R.P., Copley, M.S., Dickson, L. & Hansel, F.A. 2008. Experimental Evidence for the Processing of Marine Animal Products and Other Commodities Containing Polyunsaturated Fatty Acids in Pottery Vessels. Archaeometry, 50: 101–13. https://doi.org/10.1111/j.1475-4754.2007.00368.xCrossRefGoogle Scholar
Fornander, E., Eriksson, G. & Lidén, K. 2008. Wild at Heart: Approaching Pitted Ware Identity, Economy and Cosmology through Stable Isotopes in Skeletal Material from the Neolithic Site Korsnäs in Eastern Central Sweden. Journal of Anthropological Archaeology, 27: 281–97. https://doi.org/10.1016/j.jaa.2008.03.004CrossRefGoogle Scholar
Friedli, H., Lötscher, H., Oeschger, H., Siegenthaler, U. & Stauffer, B. 1986. Ice Core Record of the 13C/12C Ratio of Atmospheric CO2 in the Past Two Centuries. Nature, 324: 237–38. https://doi.org/10.1038/324237a0CrossRefGoogle Scholar
Haggrén, G., Halinen, P., Lavento, M., Raninen, S., & Wessman, A. 2015: Muinaisuutemme jäljet. Suomen esi- ja varhaishistoria kivikaudelta keskiajalle. Viljandi: Gaudeamus.Google Scholar
Halinen, P. 2015. Kivikausi. In: Haggrén, G., Halinen, P., Lavento, M., Raninen, S. & Wessman, A., Muinaisuutemme jäljet. Suomen esi- ja varhaishistoria kivikaudelta keskiajalle. Viljandi: Gaudeamus, pp. 17121.Google Scholar
Hansel, F.A. & Evershed, R.P. 2009. Formation of Dihydroxy Acids from Z-Monounsaturated Alkenoic Acids and their Use as Biomarkers for the Processing of Marine Commodities in Archaeological Pottery Vessels. Tetrahedron Letters, 50: 5562–64. https://doi.org/10.1016/j.tetlet.2009.06.114CrossRefGoogle Scholar
Hansel, F.A., Copley, M.S., Madureira, L.A.S. & Evershed, R.P. 2004. Thermally Produced ω-(o-alkylphenyl) Alkanoic Acids Provide Evidence for the Processing of Marine Products in Archaeological Pottery Vessels. Tetrahedron Letters, 45: 29993002. https://doi.org/10.1016/j.tetlet.2004.01.111CrossRefGoogle Scholar
Hansel, F.A., Bull, I.D. & Evershed, R.P. 2011. Gas Chromatographic Mass Spectrometric Detection of Dihydroxy Fatty Acids Preserved in the ‘Bound’ Phase of Organic Residues of Archaeological Pottery Vessels. Rapid Communications in Mass Spectrometry, 25: 1893–98. https://doi.org/10.1002/rcm.5038CrossRefGoogle ScholarPubMed
Havia, T. & Luoto, J. 1989. Piikkiön historia 1. Piikkiö: City of Piikkiö.Google Scholar
Holmblad, P. 2010. Coastal Communities on the Move. House and Polity Interaction in Southern Ostrobothnia 1500 bc–ad 1. PhD dissertation, Department of Historical, Philosophical and Religious Studies, University of Umeå [online] [accessed 20 April 2019]. Available at: <http://umu.diva-portal.org/smash/get/diva2:349824/FULLTEXT01.pdf>..>Google Scholar
Holmqvist, E., Larsson, Å.M., Kriiska, A., Palonen, V., Pesonen, P., Mizohata, K. et al. 2018. Tracing Grog and Pots to Reveal Neolithic Corded Ware Culture Contacts in the Baltic Sea region (SEM-EDS, PIXE). Journal of Archaeological Science, 91: 7791. https://doi.org/10.1016/j.jas.2017.12.009CrossRefGoogle Scholar
Juhola, T., Etu-Sihvola, H., Näreoja, T. & Ruohonen, J. 2014. Starch Analysis Reveals Starchy Foods and Food Processing from Finnish Archaeological Artefacts. Fennoscandia Archaeologica, 21: 79100.Google Scholar
Jungner, H. & Sonninen, E. 1996. Radiocarbon dates IV. Helsinki: Dating Laboratory, University of Helsinki.Google Scholar
Kibblewhite, M., Tóth, G. & Hermann, T. 2015. Predicting the Preservation of Cultural Artefacts and Buried Materials in Soil. Science of the Total Environment, 529: 249–63. https://doi.org/10.1016/j.scitotenv.2015.04.036CrossRefGoogle ScholarPubMed
Lahtinen, M. & Rowley-Conwy, P. 2013. Early Farming in Finland: Was There Cultivation Before the Iron Age (500 bc)? European Journal of Archaeology, 16: 660–84. https://doi.org/10.1179/1461957113Y.000000000040CrossRefGoogle Scholar
Lahtinen, M., Oinonen, M., Tallavaara, M., Walker James, W.P. & Rowley-Conwy, P. 2017. The Advance of Cultivation at its Northern European Limit: Process or Event? The Holocene, 27: 427–38. https://doi.org/10.1177/0959683616660164CrossRefGoogle Scholar
Lang, V. 2015. Formation of Proto-Finnic – An Archaeological Scenario from the Bronze Age/Early Iron Age. In: Mantila, H., Leinonen, K., Brunni, S., Palviainen, S. & Sivonen, J., eds. Congressus Duodecimus Internationalis Fenno-Ugristarum. Oulu: University of Oulu, pp. 6384.Google Scholar
Lang, V. 2018. Läänemeresoome tulemised. Tartu: University of Tartu.Google Scholar
Larsson, Å.M. 2009. Breaking and Making Bodies and Pots. Material and Ritual Practices in Sweden in the Third Millennium bc. PhD dissertation, University of Uppsala [online] [accessed 20 April 2019]. Available at:< http://www.diva-portal.org/smash/get/diva2:229392/FULLTEXT01.pdf >..>Google Scholar
Matikainen, J., Kaltia, S., Ala-Peijari, M., Petit-Gras, N., Harju, K., Heikkilä, J. et al. 2003. A Study of 1,5-Hydrogen Shift and Cyclization Reactions of an Alkali Isomerized Methyl Linolenoate. Tetrahedron, 59: 567–73. https://doi.org/10.1016/S0040-4020(02)01513-2CrossRefGoogle Scholar
Mökkönen, T. 2011. Studies on Stone Age Housepits in Fennoscandia (4000–2000 cal bc): Changes in Ground Plan, Site Location, and Degree of Sedentism. Helsinki: Unigrafia.Google Scholar
Mökkönen, T. 2014. Archaeological Radiocarbon Dates as a Population Proxy: A Skeptical View. Fennoscandia Archaeologica, 31: 125–34.Google Scholar
Mottram, H.R., Dudd, S.N., Lawrence, G.J., Stott, A.W. & Evershed, R.P. 1999. New Chromatographic, Mass Spectrometric and Stable Isotope Approaches to the Classification of Degraded Animal Fats Preserved in Archaeological Pottery. Journal of Chromatography A, 833: 209–21. https://doi.org/10.1016/S0021-9673(98)01041-3CrossRefGoogle Scholar
Nordqvist, K. & Häkälä, P. 2014. Distribution of Corded Ware in the Areas North of the Gulf of Finland - An Update. Estonian Journal of Archaeology, 18: 329.CrossRefGoogle Scholar
Nunez, M. 1990. 642 Saltvik 21.11 Nääs, Härdalen. Utgrävning av skärvstensröset anl. 46, 1990. Provundersökning av boplatsområdet från sten/bronsåldern 1990. Unpublished report, Ålands landskapsstyrelse.Google Scholar
Oinonen, M., Pesonen, P. & Tallavaara, M. 2010. Archaeological Radiocarbon Dates for Studying the Population History in Eastern Fennoscandia. Radiocarbon, 52: 393407. https://doi.org/10.1017/S0033822200045446CrossRefGoogle Scholar
Oras, E., Lucquin, A., Lõugas, L., Tõrv, M., Kriiska, A. & Craig, O.E. 2017. The Adoption of Pottery by North-East European Hunter-Gatherers: Evidence from Lipid Residue Analysis. Journal of Archaeological Science, 78: 112–19. https://doi.org/10.1016/j.jas.2016.11.010CrossRefGoogle Scholar
Pääkkönen, M., Bläuer, A., Evershed, R.P. & Asplund, H. 2016. Reconstructing Food Procurement and Processing in Early Comb Ware Period through Organic Residues in Early Comb and Jäkärlä Ware Pottery. Fennoscandia Archaeologica, 33: 5775.Google Scholar
Pääkkönen, M., Evershed, R.P. & Asplund, H. in press. Compound-specific Stable Carbon Isotope Values of Fatty Acids in Modern Aquatic and Terrestrial Animals from the Baltic Sea and Finland as an Aid to Interpretations of the Origins of Organic Residues Preserved in Archaeological Pottery. Journal of Nordic Archaeological Science.Google Scholar
Papakosta, V., Smittenberg, R.H., Gibbs, K., Jordan, P. & Isaksson, S. 2015. Extraction and Derivatization of Absorbed Lipid Residues from Very Small and Very Old Samples of Ceramic Potsherds for Molecular Analysis by Gas Chromatography-Mass Spectrometry (GC-MS) and Single Compound Stable Carbon Isotope Analysis by Gas Chromatography-Combustion-Isotope Ratio Mass Spectrometry (GC-C-IRMS). Microchemical Journal, 123: 196200. https://doi.org/10.1016/j.microc.2015.06.013CrossRefGoogle Scholar
Papmehl-Dufay, L. 2005. Lipidanalys av Neolitiska keramikskärvor från Glamilders, Åland (Uppdragsrapport 24). Stockholm: Archaeological Research Laboratory. Stockholm University.Google Scholar
Philippsen, B. 2015. Hard Water and Old Food. The Freshwater Reservoir Effect in Radiocarbon Dating of Food Residues on Pottery. Documenta Praehistorica, 42: 159–70. https://doi.org/10.4312/dp.42.10CrossRefGoogle Scholar
Pihlman, S. & Seppä-Heikka, M. 1985. Indication of Late-Neolithic Cereal Cultivation at the Kotirinne Dwelling Site at Niuskala, Turku, SW Finland. Memoranda Societatis pro Fauna et Flora Fennica, 61: 8588.Google Scholar
Reber, E.A., Kerr, M.T., Whelton, H.L. & Evershed, R.P. 2018. Lipid Residues from Low-Fired Pottery. Archaeometry, 61: 131–44. https://doi.org/10.1111/arcm.12403.CrossRefGoogle Scholar
Regert, M., Bland Helen, A., Dudd, S.N., van Bergen, P.F. & Evershed, R.P. 1998. Free and Bound Fatty Acid Oxidation Products in Archaeological Ceramic Vessels. Proceedings of the Royal Society B, Biological Sciences, 265: 2027–32. https://doi.org/10.1098/rspb.1998.0536CrossRefGoogle Scholar
Reimer, P.J., Bard, E., Bayliss, A., Beck, J.W., Blackwell, P.G., Ramsey, Bronk et al. 2013. IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 years cal bp. Radiocarbon, 55: 1869–87. https://doi.org/10.2458/azu_js_rc.55.16947CrossRefGoogle Scholar
Siiriäinen, A. 1981. On the Cultural Ecology of the Finnish Stone Age. Suomen Museo 1980, 87: 540.Google Scholar
Stenbäck, N. 2003. Människorna vid havet. Platser och keramik på Ålandsöarna perioden 3500–2000 f.Kr (Stockholm Studies in Archaeology 28). Stockholm: University of Stockholm.Google Scholar
Storå, J. 2000. Sealing and Animal Husbandry in the Ålandic Middle and Late Neolitic. Fennoscandia Archaeologica, 16: 5781.Google Scholar
Tallavaara, M., Pesonen, P. & Oinonen, M. 2010. Prehistoric Population History in Eastern Fennoscandia. Journal of Archaeological Science, 37: 251–60. https://doi.org/10.1016/j.jas.2009.09.035CrossRefGoogle Scholar
Tallavaara, M., Pesonen, P., Oinonen, M. and Seppä, H. 2014. The Mere Possibility of Biases Does Not Invalidate Archaeological Population Proxies – Response to Teemu Mökkönen. Fennoscandia Archaeologica, 31: 135–40.Google Scholar
Ukkonen, P. 1996. Osteological Analysis of the Refuse Fauna in the Lake Saimaa Area. Helsinki Papers in Archaeology, 8: 6391.Google Scholar
Ukkonen, P. 2001. Shaped by the Ice Age. Reconstructing the History of Mammals in Finland during the Late Pleistocene and Early Holocene. PhD dissertation, University of Helsinki Online summary available at: <http://ethesis.helsinki.fi/julkaisut/mat/geolo/vk/ukkonen/shapedby.pdf>..>Google Scholar
Uotila, K. 2014. Eura, Kauttua. Luistarintien kaivaukset 29.7. –7.10.2013. Unpublished report, Finnish National Board of Antiquities, Helsinki.Google Scholar
Vanhanen, S. & Koivisto, S. 2015. Pre-Roman Iron Age Settlement Continuity and Cereal Cultivation in Coastal Finland as Shown by Multiproxy Evidence at Bäljars 2 Site in SW Finland. Journal of Archaeological Science: Reports, 1: 3852. https://doi.org/10.1016/j.jasrep.2014.10.003CrossRefGoogle Scholar
Viklund, K., Linderholm, J. & Engelmark, R. 1998. Fähus från bronsålder till idag: stallning och utegångsdrift i långtidsperspektiv. Stockholm: Nordiska Museet.Google Scholar
Vuorela, I. 1999. Viljelytoiminnan alku Suomessa paleoekologisen tutkimuksen kohteena. In: Fogelberg, P., ed. Pohjan poluilla. Suomalaisten juuret nykytutkimuksen mukaan. pp. 143–51.Google Scholar
Vuorela, I. & Lempiäinen, T. 1988. Archaeobotany of the Site of the Oldest Cereal Grain Find in Finland. Annales Botanici Fennici, 25: 3345.Google Scholar
Welinder, S., Pedersen, E.A. & Widgren, M. 1998. Det svenska jordbrukets historia. Jordbrukets första femtusen år. Stockholm: Natur och kultur/LTs förlag.Google Scholar
Supplementary material: File

Pääkkönen et al. supplementary material

Pääkkönen et al. supplementary material
Download Pääkkönen et al. supplementary material(File)
File 47 KB