@article{RSMUP_1979__61__1_0,
     author = {Berechet, Oprea},
     title = {Sur le probl\`eme de {Cauchy} pour les op\'erateurs partiellement multiquasi-elliptiques},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {1--11},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {61},
     year = {1979},
     mrnumber = {569647},
     zbl = {0445.35047},
     language = {fr},
     url = {http://www.numdam.org/item/RSMUP_1979__61__1_0/}
}