@article{DE_1981_17_8_a25,
     author = {N. P. Erugin and N. N. Krasovskii and N. N. Moiseev},
     title = {Valentin {Vital'evich} {Rumyantsev} (on the occasion of his sixtieth birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1522--1529},
     publisher = {mathdoc},
     volume = {17},
     number = {8},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_8_a25/}
}