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@article{CMH_1970__45_139430, author = {D.M. Segal}, title = {On the {Symplectic} {Cobordism} {Ring.}}, journal = {Commentarii mathematici Helvetici}, pages = {159--169}, publisher = {mathdoc}, volume = {45}, year = {1970}, zbl = {0199.26801}, url = {http://geodesic.mathdoc.fr/item/CMH_1970__45_139430/} }
D.M. Segal. On the Symplectic Cobordism Ring.. Commentarii mathematici Helvetici, Tome 45 (1970), pp. 159-169. http://geodesic.mathdoc.fr/item/CMH_1970__45_139430/