@article{FAA_1982_16_4_a15,
     author = {Yu. G. Kondrat'ev},
     title = {Perturbations of secondary-quantization operators},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {76--77},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1982_16_4_a15/}
}