@article{MZM_1981_30_3_a0,
     author = {L. B. Khodak},
     title = {Approximation of functions by algebraic polynomials in the metric~$L_p$ for $0<p<1$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {321--332},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1981_30_3_a0/}
}