@article{1256054657,
author = {Dorroh, J. L.},
title = {Some properties of a partial differential operator},
journal = {Illinois J. Math.},
volume = {11},
number = {4},
year = {1967},
pages = { 177-188},
language = {en},
url = {http://dml.mathdoc.fr/item/1256054657}
}
Dorroh, J. L. Some properties of a partial differential operator. Illinois J. Math., Tome 11 (1967) no. 4, pp. 177-188. http://gdmltest.u-ga.fr/item/1256054657/