@article{VTAMU_2022_27_138_a3,
     author = {M. A. Boudref},
     title = {Inner product and {Gegenbauer} polynomials in {Sobolev} space},
     journal = {Vestnik rossijskih universitetov. Matematika},
     pages = {150--163},
     publisher = {mathdoc},
     volume = {27},
     number = {138},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTAMU_2022_27_138_a3/}
}