@article{TM_1968_103_a6,
     author = {L. P. Kuptsov},
     title = {A certain space of functions whose first derivatives in variable directions are $p$th-power integrable},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {96--116},
     publisher = {mathdoc},
     volume = {103},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1968_103_a6/}
}