@article{02163692, title = {An index formula for the degree of (S)}, journal = {Abstract and Applied Analysis}, volume = {2004}, year = {2004}, pages = {981-995}, doi = {10.1155/S1085337504401055}, zbl = {1078.47021}, language = {en}, url = {http://dml.mathdoc.fr/item/02163692} }
Kobayashi, Jun; Ôtani, Mitsuharu. An index formula for the degree of (S). Abstract and Applied Analysis, Tome 2004 (2004) pp. 981-995. doi : 10.1155/S1085337504401055. http://gdmltest.u-ga.fr/item/02163692/