@article{DE_1991_27_12_a16,
     author = {V. P. Titsky},
     title = {On the method of $R$-functions and the method of integral equations in the solution of problems in mathematical physics},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2147--2151},
     publisher = {mathdoc},
     volume = {27},
     number = {12},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_12_a16/}
}