Geodesic
Formal groups and bordisms with singularities
Sbornik. Mathematics, Tome 25 (1975) no. 4, pp. 487-505

Voir la notice de l'article provenant de la source Math-Net.Ru

For a certain class of rings it is shown that any formal group over a ring in the class can be realized as the formal group of a generalized cohomology theory, and that a multiplicative theory with the ring of a point in this same class is uniquely determined by its formal group. The results are applied to prove a theorem of Conner–Floyd type concerning the preservation of exactness by certain integral genera. Bibliography: 19 titles. 
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     author = {Yu. B. Rudyak},
     title = {Formal groups and bordisms with singularities},
     journal = {Sbornik. Mathematics},
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     number = {4},
     year = {1975},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1975_25_4_a1/}
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Yu. B. Rudyak. Formal groups and bordisms with singularities. Sbornik. Mathematics, Tome 25 (1975) no. 4, pp. 487-505. http://geodesic.mathdoc.fr/item/SM_1975_25_4_a1/