@article{FPM_2001_7_1_a16,
     author = {M. G. Esmaganbetov},
     title = {Minimization of exact constants in {Jackson} type inequalities and diameters of functions belonging to $L_2[0,2\pi]$},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {275--280},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2001_7_1_a16/}
}