@article{DAN_1984_277_2_a6,
     author = {G. I. Ivchenko and S. V. Tsukanov},
     title = {A new way of analyzing frequencies in the method of grouping of observations, and the optimality of the $\chi^2$ test},
     journal = {Doklady Akademii Nauk},
     pages = {287--291},
     publisher = {mathdoc},
     volume = {277},
     number = {2},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_277_2_a6/}
}