@article{DAN_1957_116_6_a3,
     author = {Ya. I. Zhitomirskii},
     title = {Cauchy problem for a second degree parabolic equation with variable coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {913--916},
     publisher = {mathdoc},
     volume = {116},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_116_6_a3/}
}