@article{KUIPM_1977_4_4_a7,
     author = {V. S. Mokeichev},
     title = {Spectral properties of some operator equations},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {44--50},
     year = {1977},
     volume = {4},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1977_4_4_a7/}
}