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@article{AIHPC_1988__5_5_465_0, author = {Hofer, H.}, title = {Lusternik-Schnirelman-theory for lagrangian intersections}, journal = {Annales de l'I.H.P. Analyse non lin\'eaire}, pages = {465--499}, publisher = {Gauthier-Villars}, volume = {5}, number = {5}, year = {1988}, mrnumber = {970850}, zbl = {0669.58006}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AIHPC_1988__5_5_465_0/} }
Hofer, H. Lusternik-Schnirelman-theory for lagrangian intersections. Annales de l'I.H.P. Analyse non linéaire, Tome 5 (1988) no. 5, pp. 465-499. http://geodesic.mathdoc.fr/item/AIHPC_1988__5_5_465_0/