@incollection{JEDP_1977____128_0,
     author = {Leray, Jean},
     title = {Analyse {Lagrangienne} et m\'ecanique quantique},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     pages = {128--129},
     publisher = {Ecole polytechnique},
     year = {1977},
     language = {fr},
     url = {http://archive.numdam.org/item/JEDP_1977____128_0/}
}