@article{1250521273,
author = {\=Okaji, Takashi},
title = {Uniqueness in the Cauchy problem for a class of partial differential operators degenerate on the initial surface},
journal = {J. Math. Kyoto Univ.},
volume = {24},
number = {4},
year = {1984},
pages = { 423-439},
language = {en},
url = {http://dml.mathdoc.fr/item/1250521273}
}
Ōkaji, Takashi. Uniqueness in the Cauchy problem for a class of partial differential operators degenerate on the initial surface. J. Math. Kyoto Univ., Tome 24 (1984) no. 4, pp. 423-439. http://gdmltest.u-ga.fr/item/1250521273/