@incollection{SB_1966-1968__10__473_0,
     author = {Po\'enaru, Valentin},
     title = {Extension des immersions en codimension 1},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1966/67 1967/68, expos\'es 313-346},
     series = {S\'eminaire Bourbaki},
     note = {talk:342},
     pages = {473--505},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {10},
     year = {1968},
     mrnumber = {1610469},
     zbl = {0223.57013},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1966-1968__10__473_0/}
}