@incollection{AST_1992__207__1_0,
     author = {AST},
     title = {M\'ethodes semi-classiques {Volume} 1 - {Pages} pr\'eliminaires},
     booktitle = {M\'ethodes semi-classiques Volume 1 - \'Ecole d'\'Et\'e (Nantes, juin 1991)},
     series = {Ast\'erisque},
     pages = {1--6},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {207},
     year = {1992},
     language = {fr},
     url = {http://www.numdam.org/item/AST_1992__207__1_0/}
}