@article{01606172,
title = {Multiplicity of positive solutions to semilinear elliptic boundary value problems.},
journal = {Abstract and Applied Analysis},
volume = {4},
year = {1999},
pages = {195-208},
doi = {10.1155/S1085337599000147},
zbl = {0987.35060},
language = {en},
url = {http://dml.mathdoc.fr/item/01606172}
}
Umezu, Kenichiro. Multiplicity of positive solutions to semilinear elliptic boundary value problems.. Abstract and Applied Analysis, Tome 4 (1999) pp. 195-208. doi : 10.1155/S1085337599000147. http://gdmltest.u-ga.fr/item/01606172/