@article{IM2_1971_5_2_a6,
     author = {T. P. Lukashenko},
     title = {On functions conjugate to {Denjoy--Khinchin} integrable functions},
     journal = {Izvestiya. Mathematics },
     pages = {393--420},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1971_5_2_a6/}
}