@incollection{MSMF_1977__51-52__125_0, author = {M\'etivier, Guy}, title = {Valeurs propres de probl\`emes aux limites elliptiques irr\'eguliers}, booktitle = {Contributions \`a l'\'etude des op\'erateurs elliptiques et hypoelliptiques}, author = {Collectif}, series = {M\'emoires de la Soci\'et\'e Math\'ematique de France}, pages = {125--219}, publisher = {Soci\'et\'e math\'ematique de France}, number = {51-52}, year = {1977}, doi = {10.24033/msmf.235}, zbl = {0401.35088}, mrnumber = {57 #13244}, url = {http://archive.numdam.org/articles/10.24033/msmf.235/} }