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@article{IM_1989__97_2_143712, author = {V. Guillemin and S. Sternberg}, title = {Birational equivalence in the symplectic category.}, journal = {Inventiones mathematicae}, pages = {485--522}, publisher = {mathdoc}, volume = {97}, number = {2}, year = {1989}, zbl = {0683.53033}, url = {http://geodesic.mathdoc.fr/item/IM_1989__97_2_143712/} }
V. Guillemin; S. Sternberg. Birational equivalence in the symplectic category.. Inventiones mathematicae, Tome 97 (1989) no. 2, pp. 485-522. http://geodesic.mathdoc.fr/item/IM_1989__97_2_143712/