@article{1195520624,
author = {Nakaoka, Akira},
title = {Mixed problems for degenerate hyperbolic equations of second order},
journal = {Proc. Japan Acad.},
volume = {45},
number = {8},
year = {1969},
pages = { 706-709},
language = {en},
url = {http://dml.mathdoc.fr/item/1195520624}
}
Nakaoka, Akira. Mixed problems for degenerate hyperbolic equations of second order. Proc. Japan Acad., Tome 45 (1969) no. 8, pp. 706-709. http://gdmltest.u-ga.fr/item/1195520624/