Краснодембський, Адам Михайлович. “PERIODICITY OF DECISIONS OF SOME SYSTEM A FEW NONLINEAR DIFFERENTIAL EQUALIZATIONS OF ODD ORDER”. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, no. 1(33) (February 19, 2019): 118–123. Accessed December 5, 2025. https://pvntsh.nung.edu.ua/index.php/number/article/view/108.