@incollection{JEDP_1981____A17_0,
     author = {Kashiwara, Masaki and Schapira, Pierre},
     title = {Vari\'et\'e caract\'eristique de la restriction d'un module diff\'erentiel},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {17},
     pages = {1--5},
     publisher = {Ecole polytechnique},
     year = {1981},
     zbl = {0522.58050},
     language = {fr},
     url = {http://www.numdam.org/item/JEDP_1981____A17_0/}
}