@article{MZM_1990_48_2_a22,
     author = {M. M. Lekishvili},
     title = {Exponential integrability of a~conjugate function},
     journal = {Matemati\v{c}eskie zametki},
     pages = {155--157},
     year = {1990},
     volume = {48},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_2_a22/}
}