@article{DE_2000_36_3_a1,
     author = {A. M. Zuev},
     title = {On the basis property of {Riesz} means of spectral expansions corresponding to a nonself-adjoint ordinary differential operator of higher order: {I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {301--311},
     publisher = {mathdoc},
     volume = {36},
     number = {3},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_3_a1/}
}