@article{01780535,
title = {Isolation and simplicity for the first eigenvalue of the },
journal = {Abstract and Applied Analysis},
volume = {7},
year = {2002},
pages = {287-293},
doi = {10.1155/S108533750200088X},
zbl = {1065.35215},
language = {en},
url = {http://dml.mathdoc.fr/item/01780535}
}
Martínez, Sandra; Rossi, Julio D. Isolation and simplicity for the first eigenvalue of the . Abstract and Applied Analysis, Tome 7 (2002) pp. 287-293. doi : 10.1155/S108533750200088X. http://gdmltest.u-ga.fr/item/01780535/