@article{ISU_2019_19_1_a3,
     author = {I. S. Lomov},
     title = {The {Il'in} spectral method for determination of the properties of the basis property and the uniform convergence of biorthogonal expansions on a finite interval},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {34--58},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2019_19_1_a3/}
}