@article{10_4064_sm_80_3_219_234,
     author = {Jaroslav Zem\'anek},
     title = {Geometric characteristic of {semi-Fredholm} operators and their asymptotic behaviour},
     journal = {Studia Mathematica},
     pages = {219--234},
     publisher = {mathdoc},
     volume = {80},
     number = {3},
     year = {1984},
     doi = {10.4064/sm-80-3-219-234},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-80-3-219-234/}
}