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Published online by Cambridge University Press: 01 September 2008
In this paper, the affiliations and names of the authors were misplaced. The correct information is:
V.M. Buchstaber
Steklov Mathematical Institute, RAS, Gubkina 8, 119991 Moscow
and School of Mathematics, University of Manchester, Manchester M13 9PL.
and E.G. Rees
School of Mathematics, University of Edinburgh, Edinburgh EH9 3JZ
and Heilbronn Institute for Mathematical Research, University of Bristol, Bristol BS8 1TW.