@article{DE_2000_36_5_a4,
     author = {O. P. Filatov},
     title = {Periodicity of optimal controls in the problem on the evaluation of limits of maximal averages},
     journal = {Differencialʹnye uravneni\^a},
     pages = {618--623},
     year = {2000},
     volume = {36},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_5_a4/}
}