@article{1250525105,
author = {Matsuura, Shigetake},
title = {A remark on ellipticity of general systems of partial differential operators with constant coefficients},
journal = {J. Math. Kyoto Univ.},
volume = {1},
number = {1},
year = {1961},
pages = { 71-74},
language = {en},
url = {http://dml.mathdoc.fr/item/1250525105}
}
Matsuura, Shigetake. A remark on ellipticity of general systems of partial differential operators with constant coefficients. J. Math. Kyoto Univ., Tome 1 (1961) no. 1, pp. 71-74. http://gdmltest.u-ga.fr/item/1250525105/