@article{MZM_1998_64_4_a7,
     author = {N. B. Kerimov and Kh. R. Mamedov},
     title = {On the {Riesz} basis property of the root functions in certain regular boundary value problems},
     journal = {Matemati\v{c}eskie zametki},
     pages = {558--563},
     publisher = {mathdoc},
     volume = {64},
     number = {4},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1998_64_4_a7/}
}