@article{DAN_1971_201_2_a5,
     author = {G. P. Chistyakov},
     title = {On the conditions under which probability laws with nonanalytic characteristic functions belong to class $I_0$},
     journal = {Doklady Akademii Nauk},
     pages = {280--283},
     publisher = {mathdoc},
     volume = {201},
     number = {2},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_201_2_a5/}
}