@article{DE_2005_41_10_a12,
     author = {G. A. Sviridyuk and A. F. Karamova},
     title = {On the {Phase} {Space} {Fold} of a {Nonclassical} {Equation}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1400--1405},
     publisher = {mathdoc},
     volume = {41},
     number = {10},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2005_41_10_a12/}
}