Presentations

The periodic solutions of the nonlinear differential equations Pontryagin

Sharifzoda Z.I.

The research institute of Tajik National University Tajikistan, 734025 c. Dushanbe , Rudaki st. 17, Phone: (+992) 988-44-28-03, E-mail: sakhara-2803@mail.ru

• abstract in Russian (PDF)