@article{DE_1999_35_9_a3,
     author = {P. A. Krutitskii},
     title = {A mixed problem for the {Laplace} equation in three-dimensional multiply connected domains},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1179--1186},
     publisher = {mathdoc},
     volume = {35},
     number = {9},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_9_a3/}
}