@article{DE_2003_39_6_a0,
     author = {A. A. Bolibrukh},
     title = {The {Minimal} {Birkhoff} {Standard} {Form} and the {Reducibility} {Type}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {723--730},
     publisher = {mathdoc},
     volume = {39},
     number = {6},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_6_a0/}
}