@article{MO_2023_4_a3,
     author = {S. V. Kostin},
     title = {Math problems with year number (2023). {Conditions} of problems 1{\textendash}65},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {39--49},
     year = {2023},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2023_4_a3/}
}