@article{SVFU_2016_23_1_a6,
     author = {I. M. Petrushko and M. I. Petrushko},
     title = {On the first problem for the degenerate parabolic equations with changing time direction},
     journal = {Matemati\v{c}eskie zametki SVFU},
     pages = {67--78},
     year = {2016},
     volume = {23},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SVFU_2016_23_1_a6/}
}