@incollection{JEDP_1992____A4_0, author = {Costabel, Martin and Dauge, Monique}, title = {Singularit\'es d'ar\^etes pour les probl\`emes aux limites elliptiques}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {4}, pages = {1--12}, publisher = {Ecole polytechnique}, year = {1992}, mrnumber = {93j:35201}, language = {fr}, url = {http://archive.numdam.org/item/JEDP_1992____A4_0/} }