@article{ASENS_1954_3_71_4_321_0, author = {Herz, Jean-Claude}, title = {Contribution \`a la th\'eorie alg\'ebrique des \'equations aux d\'eriv\'ees partielles}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {321--362}, publisher = {Elsevier}, volume = {3e s{\'e}rie, 71}, number = {4}, year = {1954}, doi = {10.24033/asens.1026}, zbl = {0058.26801}, mrnumber = {16,1084e}, language = {fr}, url = {http://www.numdam.org/articles/10.24033/asens.1026/} }