@article{DAN_1991_321_6_a10,
     author = {Yu. A. Surinov},
     title = {Integral equations of the relation between resolvents for},
     journal = {Doklady Akademii Nauk},
     pages = {1173--1177},
     year = {1991},
     volume = {321},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_321_6_a10/}
}