@article{DAN_1989_308_2_a2,
     author = {A. S. Sorokin},
     title = {The {G.~M.~Goluzin--P.~P.~Kufarev} variational method and the {M.~V.~Keldysh--L.~I.~Sedov} formula},
     journal = {Doklady Akademii Nauk},
     pages = {273--277},
     publisher = {mathdoc},
     volume = {308},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_308_2_a2/}
}