@incollection{AST_1976__32-33__165_0,
     author = {Mather, John N.},
     title = {Infinite dimensional group actions},
     booktitle = {Colloque analyse et topologie},
     series = {Ast\'erisque},
     pages = {165--172},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {32-33},
     year = {1976},
     mrnumber = {426026},
     zbl = {0352.57013},
     language = {en},
     url = {http://www.numdam.org/item/AST_1976__32-33__165_0/}
}