@article{IVM_1969_4_a9,
     author = {R. A. Raitsin},
     title = {The best mean square approximation, by polynomials and by entire functions of finite degree, of functions which have algebraic singular point},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {59--61},
     publisher = {mathdoc},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1969_4_a9/}
}