@article{IVM_1958_1_a20,
     author = {B. M. Yakhnin},
     title = {A~relationship between the {Lebesgue} functions of an expansion into series of {Jacobi} polynomials orthonormalized with the weight function $P(x)=\sqrt{\dfrac{1+x}{1-x}}$ and the {Chebyshev} polynomials},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {202--207},
     publisher = {mathdoc},
     number = {1},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1958_1_a20/}
}