@article{02163687,
title = {On the discreteness of the spectra of the Dirichlet and Neumann },
journal = {Abstract and Applied Analysis},
volume = {2004},
year = {2004},
pages = {777-792},
doi = {10.1155/S1085337504311115},
zbl = {1081.34018},
language = {en},
url = {http://dml.mathdoc.fr/item/02163687}
}
Benedikt, Jiří. On the discreteness of the spectra of the Dirichlet and Neumann . Abstract and Applied Analysis, Tome 2004 (2004) pp. 777-792. doi : 10.1155/S1085337504311115. http://gdmltest.u-ga.fr/item/02163687/