@article{DE_1984_20_10_a19, author = {N. S. Berezkina}, title = {The relation between third-order systems without moving critical points and nonlinear partial differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {1806--1809}, publisher = {mathdoc}, volume = {20}, number = {10}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1984_20_10_a19/} }