Для цитирования:

 ,   . Наносистемы: физика, химия, математика. 2022;13(5):491-497. https://doi.org/10.17586/2220-8054-2022-13-5-491-497

For citation:

Muminov M.I., Radjabov T.A. On existence conditions for periodic solutions to a differential equation with constant argument. Nanosystems: Physics, Chemistry, Mathematics. 2022;13(5):491-497. https://doi.org/10.17586/2220-8054-2022-13-5-491-497