@incollection{AST_1984__111__3_0,
     author = {Harthong, Jacques},
     title = {La m\'ethode de la phase stationnaire},
     booktitle = {\'Etudes sur la m\'ecanique quantique},
     series = {Ast\'erisque},
     pages = {3--26},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {111},
     year = {1984},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1984__111__3_0/}
}