@article{MZM_2022_111_6_a0,
     author = {R. M. Gadzhimirzaev},
     title = {On {Approximation} {Properties} of {Fourier} {Series} in {Jacobi} {Polynomials} $P_n^{\alpha-r,-r}(x)$ {Orthogonal} in the {Sense} of {Sobolev}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {803--818},
     publisher = {mathdoc},
     volume = {111},
     number = {6},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2022_111_6_a0/}
}