@article{DAN_1997_352_2_a3,
     author = {N. K. Karapetyants and A. I. Ginzburg},
     title = {Lebesgue points and fractional integrals},
     journal = {Doklady Akademii Nauk},
     pages = {163--166},
     year = {1997},
     volume = {352},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1997_352_2_a3/}
}