@article{TM_2014_287_a16,
     author = {P. A. Yaskov},
     title = {On the law of large numbers for martingales},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {300--309},
     year = {2014},
     volume = {287},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2014_287_a16/}
}