%0 Journal Article %A V. S. Mokeichev %T Spectral properties of some operator equations %J Issledovaniya po Prikladnoi Matematike i Informatike %D 1977 %P 44-50 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUIPM_1977_a7/ %G ru %F KUIPM_1977_a7