[1]
O. Solonukha, “On the existence of solutions of operator differential equations”,
Ukr. Mat. Zhurn.
, vol. 56, no. 6, pp. 837–850, Jun. 2004, Accessed: Apr. 09, 2025. [Online]. Available:
https://umj.imath.kiev.ua/index.php/umj/article/view/3802