@article{MZM_2013_93_5_a15,
     author = {A. G. Petrova},
     title = {On {Monotonicity} {Conditions} for the {Free} {Boundary} in the {Two-Phase} {Stefan} {Problem}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {798--800},
     publisher = {mathdoc},
     volume = {93},
     number = {5},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_93_5_a15/}
}