@article{DE_1986_22_4_a20,
     author = {M. I. Zharov},
     title = {Asymptotic representation of trajectory and period of a relaxation oscillation in case of an angular point of a separation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {708--710},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_4_a20/}
}