@article{MZM_2016_100_4_a4,
     author = {D. V. Gorbachev and V. I. Ivanov},
     title = {Approximation in~$L_2$ by {Partial} {Integrals} of the {Fourier} {Transform} over the {Eigenfunctions} of the {Sturm--Liouville} {Operator}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {519--530},
     publisher = {mathdoc},
     volume = {100},
     number = {4},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2016_100_4_a4/}
}