@article{DE_2005_41_10_a17,
     author = {D. B. Marchenkov},
     title = {On the {Convergence} of {Spectral} {Expansions} of {Functions} for {Problems} with a {Spectral} {Parameter} in a {Boundary} {Condition}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1419--1422},
     publisher = {mathdoc},
     volume = {41},
     number = {10},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2005_41_10_a17/}
}