@article{SM_1969_8_3_a7,
     author = {V. K. Zakharov and O. V. Sarmanov and B. A. Sevast'yanov},
     title = {Sequential~$\chi^2$ criteria},
     journal = {Sbornik. Mathematics},
     pages = {419--435},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {1969},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1969_8_3_a7/}
}