TY  - JOUR
AU  - S. V. Kostin
TI  - Math problems with year number (2023). Conditions of problems 1–65
JO  - Matematičeskoe obrazovanie
PY  - 2023
SP  - 39
EP  - 49
IS  - 4
UR  - http://geodesic.mathdoc.fr/item/MO_2023_4_a3/
LA  - ru
ID  - MO_2023_4_a3
ER  -