@article{DAN_1961_141_2_a1,
     author = {N. I. Akhiezer},
     title = {Continuous analogues of orthogonal polynomials on a system of intervals},
     journal = {Doklady Akademii Nauk},
     pages = {263--266},
     publisher = {mathdoc},
     volume = {141},
     number = {2},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_2_a1/}
}