@article{DE_1991_27_6_a16,
     author = {S. P. Okhezin},
     title = {A mathematical model of the {Stefan} problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1042--1048},
     publisher = {mathdoc},
     volume = {27},
     number = {6},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_6_a16/}
}