@article{MO_2019_89_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}, publisher = {mathdoc}, volume = {89}, number = {1}, year = {2019}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2019_89_1_a6/} }