@article{DE_1994_30_12_a6,
     author = {E. I. Moiseev},
     title = {On the absence of the basis property in a system of root functions for a nonlocal boundary value problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2082--2093},
     publisher = {mathdoc},
     volume = {30},
     number = {12},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_12_a6/}
}