@incollection{JEDP_1974____A5_0,
     author = {Pham The Lai},
     title = {Comportement asymptotique des valeurs propres d'une classe d'op\'erateurs elliptiques et d\'eg\'en\'er\'es en dimension 2},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {5},
     pages = {1--10},
     publisher = {Ecole polytechnique},
     year = {1974},
     language = {fr},
     url = {http://archive.numdam.org/item/JEDP_1974____A5_0/}
}