@incollection{SB_1969-1970__12__155_0,
     author = {Po\'enaru, Valentin},
     title = {Travaux de {J.} {Cerf} (isotopie et pseudo-isotopie)},
     booktitle = {S\'eminaire Bourbaki : vol. 1969/70, expos\'es 364-381},
     series = {S\'eminaire Bourbaki},
     note = {talk:373},
     pages = {155--176},
     publisher = {Springer-Verlag},
     number = {12},
     year = {1971},
     zbl = {0218.57018},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1969-1970__12__155_0/}
}