@incollection{AST_1985__131__15_0,
     author = {Cartan, Henri},
     title = {Quelques souvenirs d'une longue amiti\'e},
     booktitle = {Colloque en l'honneur de Laurent Schwartz - Volume 1},
     author = {Collectif},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {131},
     year = {1985},
     pages = {15-23},
     mrnumber = {816735},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1985__131__15_0}
}

Cartan, Henri. Quelques souvenirs d'une longue amitié, in Colloque en l'honneur de Laurent Schwartz - Volume 1, Astérisque, no. 131 (1985), pp. 15-23. http://www.numdam.org/item/AST_1985__131__15_0/