@article{DAN_1960_131_5_a2,
     author = {T. D. Ventcel'},
     title = {A free boundary problem for the heat equation},
     journal = {Doklady Akademii Nauk},
     pages = {1000--1003},
     publisher = {mathdoc},
     volume = {131},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_131_5_a2/}
}