@article{VMUMM_1994_1_a10,
     author = {M. K. Potapov and S. K. Tankaeva},
     title = {On the structural characteristics of functions with a given order of best approximation by algebraic polynomials},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {46--54},
     publisher = {mathdoc},
     number = {1},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1994_1_a10/}
}