%0 Journal Article %A A. B. Aleksandrov %T Approximation by rational functions, and an analogue of the M. Riesz theorem on conjugate functions for $L^p$-spaces with $p\in(0,1)$ %J Sbornik. Mathematics %D 1979 %P 301-316 %V 35 %N 3 %U http://geodesic.mathdoc.fr/item/SM_1979_35_3_a0/ %G en %F SM_1979_35_3_a0