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New Absolute Intensities of the Emission Lines of 15 Planetary Nebulae the Members of the Galactic Centre Group
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- Journal:
- Symposium - International Astronomical Union / Volume 76 / 1978
- Published online by Cambridge University Press:
- 22 September 2016, p. 123
- Print publication:
- 1978
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Spiral structure of our Galaxy and of other galaxies
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- Journal:
- Symposium - International Astronomical Union / Volume 38 / 1970
- Published online by Cambridge University Press:
- 14 August 2015, pp. 15-17
- Print publication:
- 1970
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The Absolute Spectrophotometry of 170 Planetary Nebulae
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- Journal:
- Symposium - International Astronomical Union / Volume 34 / 1968
- Published online by Cambridge University Press:
- 14 August 2015, pp. 55-58
- Print publication:
- 1968
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Filaments of the Helix Nebula
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- Journal:
- Symposium - International Astronomical Union / Volume 34 / 1968
- Published online by Cambridge University Press:
- 14 August 2015, pp. 256-258
- Print publication:
- 1968
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