@article{01780342, title = {On the continuity of principal eigenvalues for boundary value problems with indefinite weight function with respect to radiusof balls in }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {30}, year = {2002}, pages = {279-283}, doi = {10.1155/S0161171202007147}, zbl = {1085.35052}, language = {en}, url = {http://dml.mathdoc.fr/item/01780342} }
Afrouzi, Ghasem Alizadeh. On the continuity of principal eigenvalues for boundary value problems with indefinite weight function with respect to radiusof balls in . International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 279-283. doi : 10.1155/S0161171202007147. http://gdmltest.u-ga.fr/item/01780342/