@incollection{AST_1977__50__315_0,
     author = {Nadzieja, T.},
     title = {A remark on vector fields on open manifolds},
     booktitle = {Syst\`emes dynamiques II - Varsovie},
     series = {Ast\'erisque},
     pages = {315--322},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {50},
     year = {1977},
     mrnumber = {494281},
     zbl = {0374.58009},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1977__50__315_0/}
}