@article{JRAM_1976__280_151669, author = {R. Mennicken and B. Sagraloff}, title = {St\"orungstheoretische {Untersuchungen} \"uber {Semi-Fredholmpaare} und -operatoren in lokalkonvexen {Vektorr\"aumen.} {I.}}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {1}, publisher = {mathdoc}, volume = {280}, year = {1976}, zbl = {0353.46001}, language = {un}, url = {https://geodesic-test.mathdoc.fr/item/JRAM_1976__280_151669/} }