@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/}
}