@article{1250521111,
author = {Miyatake, Sadao},
title = {Boundary value problems for second order equations of variable type in a half space},
journal = {J. Math. Kyoto Univ.},
volume = {25},
number = {4},
year = {1985},
pages = { 299-329},
language = {en},
url = {http://dml.mathdoc.fr/item/1250521111}
}
Miyatake, Sadao. Boundary value problems for second order equations of variable type in a half space. J. Math. Kyoto Univ., Tome 25 (1985) no. 4, pp. 299-329. http://gdmltest.u-ga.fr/item/1250521111/