@incollection{JEDP_1995____A5_0, author = {Vassiliev, Dimitri G.}, title = {The symbol of a lagrangian distribution}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {5}, pages = {1--12}, publisher = {Ecole polytechnique}, year = {1995}, mrnumber = {96j:58164}, zbl = {0901.58063}, language = {en}, url = {http://archive.numdam.org/item/JEDP_1995____A5_0/} }
Vassiliev, Dimitri G. The symbol of a lagrangian distribution. Journées équations aux dérivées partielles (1995), article no. 5, 12 p. http://archive.numdam.org/item/JEDP_1995____A5_0/
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