@article{1183500408,
author = {John, Fritz},
title = {A note on the maximum principle for elliptic differential equations},
journal = {Bull. Amer. Math. Soc.},
volume = {44},
number = {11},
year = {1938},
pages = { 268-271},
language = {en},
url = {http://dml.mathdoc.fr/item/1183500408}
}
John, Fritz. A note on the maximum principle for elliptic differential equations. Bull. Amer. Math. Soc., Tome 44 (1938) no. 11, pp. 268-271. http://gdmltest.u-ga.fr/item/1183500408/