@article{GDZPPN002426161, title = {Fredholm Theory Relative to a Banach Algebra Homomorphism.}, journal = {Mathematische Zeitschrift}, volume = {180}, year = {1982}, pages = {431-436}, zbl = {0479.47032}, url = {http://dml.mathdoc.fr/item/GDZPPN002426161} }
Harte, Robin. Fredholm Theory Relative to a Banach Algebra Homomorphism.. Mathematische Zeitschrift, Tome 180 (1982) pp. 431-436. http://gdmltest.u-ga.fr/item/GDZPPN002426161/