@article{VNGU_2006_6_4_a6,
     author = {T. \'Alvarez},
     title = {SemiFredholm linear relations in operator rangles},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {98--105},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2006_6_4_a6/}
}