@article{IM2_1998_62_6_a5,
     author = {A. I. Kozko},
     title = {Fractional derivatives and inequalities for trigonometric polynomials in spaces with asymmetric norms},
     journal = {Izvestiya. Mathematics},
     pages = {1189--1206},
     year = {1998},
     volume = {62},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1998_62_6_a5/}
}