@article{01570782, title = {Critical groups of critical points produced by local linking with applications.}, journal = {Abstract and Applied Analysis}, volume = {3}, year = {1998}, pages = {437-446}, doi = {10.1155/S1085337598000657}, zbl = {0972.58008}, language = {en}, url = {http://dml.mathdoc.fr/item/01570782} }
Perera, Kanishka. Critical groups of critical points produced by local linking with applications.. Abstract and Applied Analysis, Tome 3 (1998) pp. 437-446. doi : 10.1155/S1085337598000657. http://gdmltest.u-ga.fr/item/01570782/