@article{SM_1986_55_1_a7,
     author = {G. A. Fomin},
     title = {On some classes of {Jacobi} orthogonal series},
     journal = {Sbornik. Mathematics},
     pages = {121--132},
     publisher = {mathdoc},
     volume = {55},
     number = {1},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1986_55_1_a7/}
}