@article{MO_1999_2-3_a4,
     author = {S. V. Popov},
     title = {The {{\textquotedblleft}Tuimaada"} {International} {Math} {Olympiad's} {Problems}},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {102--121},
     year = {1999},
     number = {2-3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_1999_2-3_a4/}
}