@article{01370668,
title = {The generalized Conley index and multiple solutions of semilinear elliptic problems.},
journal = {Abstract and Applied Analysis},
volume = {1},
year = {1996},
pages = {103-135},
doi = {10.1155/S108533759600005X},
zbl = {0933.35069},
language = {en},
url = {http://dml.mathdoc.fr/item/01370668}
}
Dancer, E.N.; Du, Yihong. The generalized Conley index and multiple solutions of semilinear elliptic problems.. Abstract and Applied Analysis, Tome 1 (1996) pp. 103-135. doi : 10.1155/S108533759600005X. http://gdmltest.u-ga.fr/item/01370668/