@incollection{SB_1980-1981__23__205_0,
     author = {Cerf, Jean},
     title = {$1$-formes ferm\'ees non singuli\`eres sur les vari\'et\'es compactes de dimension $3$},
     booktitle = {S\'eminaire Bourbaki : vol. 1980/81, expos\'es 561-578},
     series = {S\'eminaire Bourbaki},
     note = {talk:574},
     pages = {205--219},
     publisher = {Springer-Verlag},
     number = {23},
     year = {1981},
     mrnumber = {647498},
     zbl = {0512.58005},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1980-1981__23__205_0/}
}