1.
Zakharin SF, Parasyuk IO. Generalized and classical almost periodic solutions of Lagrangian systems convex on a compact set. Ukr. Mat. Zhurn. [Internet]. 1998Dec.25 [cited 2024Jul.27];50(12):1601–1608. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4779