@article{1195525184,
author = {Shirota, Taira},
title = {The initial value problem for linear partial differential equations with variable coefficients, I},
journal = {Proc. Japan Acad.},
volume = {33},
number = {10},
year = {1957},
pages = { 31-36},
language = {en},
url = {http://dml.mathdoc.fr/item/1195525184}
}
Shirota, Taira. The initial value problem for linear partial differential equations with variable coefficients, I. Proc. Japan Acad., Tome 33 (1957) no. 10, pp. 31-36. http://gdmltest.u-ga.fr/item/1195525184/