@article{MZM_1972_12_3_a4,
     author = {E. M. Landis},
     title = {Behavior of the solution of a parabolic equation on a characteristic},
     journal = {Matemati\v{c}eskie zametki},
     pages = {257--262},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1972_12_3_a4/}
}