@article{MO_2019_1_a6,
     author = {A. Yu. Evnin},
     title = {Problems of math competition of the {South} {Ural} {State}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {43--56},
     year = {2019},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2019_1_a6/}
}