@article{DAN_1967_175_6_a0,
     author = {I. A. Aleksandrov and A. S. Sorokin},
     title = {On extending the variational method of {G.} {M.~Goluzin} and {P.} {P.~Kufarev} to a multiply connected region},
     journal = {Doklady Akademii Nauk},
     pages = {1207--1210},
     year = {1967},
     volume = {175},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_175_6_a0/}
}