@misc{DE_2003_39_6_a17,
     title = {Seminar on {Qualitative} {Theory} of {Differential} {Equations} at {Moscow} {State} {University}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {855--860},
     publisher = {mathdoc},
     volume = {39},
     number = {6},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_6_a17/}
}