@article{1250520761,
author = {Hasegawa, Yukiko},
title = {On the Levi condition for Goursat problem},
journal = {J. Math. Kyoto Univ.},
volume = {27},
number = {4},
year = {1987},
pages = { 1-25},
language = {en},
url = {http://dml.mathdoc.fr/item/1250520761}
}
Hasegawa, Yukiko. On the Levi condition for Goursat problem. J. Math. Kyoto Univ., Tome 27 (1987) no. 4, pp. 1-25. http://gdmltest.u-ga.fr/item/1250520761/