@article{ASNSP_1967_3_21_4_547_0,
     author = {Zaidman, S.},
     title = {Some non-homogeneous symbols and associated pseudo-differential operators},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {547--574},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 21},
     number = {4},
     year = {1967},
     mrnumber = {224978},
     zbl = {0155.43403},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1967_3_21_4_547_0/}
}