@incollection{SB_1956-1958__4__219_0,
     author = {Chevalley, Claude},
     title = {La notion de correspondance propre en g\'eom\'etrie alg\'ebrique},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1956/57 - 1957/58, expos\'es 137-168},
     author = {Collectif},
     series = {S\'eminaire Bourbaki},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {4},
     year = {1958},
     note = {talk:152},
     pages = {219-229},
     zbl = {0084.16902},
     mrnumber = {108495},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1956-1958__4__219_0}
}

Chevalley, Claude. La notion de correspondance propre en géométrie algébrique, in Séminaire Bourbaki : années 1956/57 - 1957/58, exposés 137-168, Séminaire Bourbaki, no. 4 (1958), Talk no. 152, pp. 219-229. http://www.numdam.org/item/SB_1956-1958__4__219_0/