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@article{IVM_1976_7_a8, author = {P. Oswald}, title = {Some inequalities for trigonometric polynomials in the $L_p$ metric, $0<p<1$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {65--75}, publisher = {mathdoc}, number = {7}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1976_7_a8/} }
P. Oswald. Some inequalities for trigonometric polynomials in the $L_p$ metric, $0