@article{1250126195,
author = {Cosner, Chris and Schmitt, Klaus},
title = {On the geometry of level sets of positive solutions of semilinear elliptic equations},
journal = {Rocky Mountain J. Math.},
volume = {18},
number = {4},
year = {1988},
pages = { 277-286},
language = {en},
url = {http://dml.mathdoc.fr/item/1250126195}
}
Cosner, Chris; Schmitt, Klaus. On the geometry of level sets of positive solutions of semilinear elliptic equations. Rocky Mountain J. Math., Tome 18 (1988) no. 4, pp. 277-286. http://gdmltest.u-ga.fr/item/1250126195/