@incollection{AST_1986__140-141__251_0,
     author = {AST},
     title = {Abstract},
     booktitle = {G\'eom\'etrie et analyse microlocales},
     series = {Ast\'erisque},
     pages = {251--252},
     year = {1986},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {140-141},
     language = {en},
     url = {https://www.numdam.org/item/AST_1986__140-141__251_0/}
}