@incollection{AST_1983__107-108__69_0,
     author = {Marle, Charles-Michel},
     title = {Sous-vari\'et\'es de rang constant d'une vari\'et\'e symplectique},
     booktitle = {IIIe rencontre de g\'eom\'etrie du Schnepfenried (Volume 1) - 10 - 15 mai 1982},
     series = {Ast\'erisque},
     pages = {69--86},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {107-108},
     year = {1983},
     zbl = {0529.53031},
     mrnumber = {753130},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1983__107-108__69_0/}
}