@article{FAA_1980_14_2_a22,
     author = {M. A. Perel'muter},
     title = {Perturbation of operators with an integral resolvent},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {75--76},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1980_14_2_a22/}
}