@article{MZM_1968_4_4_a9,
     author = {O. D. Tsereteli},
     title = {The integrability of conjugate functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {461--465},
     year = {1968},
     volume = {4},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1968_4_4_a9/}
}