@article{DE_1994_30_10_a6,
     author = {N. S. Berezkina and I. P. Martynov and V. A. Pron'ko},
     title = {On the classification of third-order partial differential equations of {Painlev\'e} type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1703--1709},
     publisher = {mathdoc},
     volume = {30},
     number = {10},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_10_a6/}
}