@misc{DE_2003_39_11_a21,
     title = {Seminar on the {Qualitative} {Theory} of {Differential} {Equations} at {Moscow} {State} {University}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1575--1579},
     publisher = {mathdoc},
     volume = {39},
     number = {11},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_11_a21/}
}