@article{TRSPY_1967_88_a4,
     author = {L. V. Taikov},
     title = {The approximation in the mean of certain classes of periodic functions},
     journal = {Informatics and Automation},
     pages = {61--70},
     publisher = {mathdoc},
     volume = {88},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1967_88_a4/}
}