@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://www.numdam.org/item/AIHPC_1988__5_5_465_0/}
}