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@article{DAN_1992_322_1_a8, author = {K. V. Runovskii}, title = {On approximation ``by an angle'' in $L_p$ spaces, $0<p<1$}, journal = {Doklady Akademii Nauk}, pages = {45--47}, publisher = {mathdoc}, volume = {322}, number = {1}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1992_322_1_a8/} }
K. V. Runovskii. On approximation ``by an angle'' in $L_p$ spaces, $0