@article{DE_1985_21_10_a8,
     author = {Yu. S. Kolesov},
     title = {A bifurcation theorem in the theory of self-oscillations of distributed systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1709--1713},
     publisher = {mathdoc},
     volume = {21},
     number = {10},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_10_a8/}
}