@article{DE_1990_26_12_a8,
     author = {M. D. Martynenko and D. B. Nguyẽn},
     title = {The existence of solitary waves propagating in an elastoplastic space},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2093--2097},
     publisher = {mathdoc},
     volume = {26},
     number = {12},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_12_a8/}
}