For citations:

Usmanov K.I., Nazarova K.Zh., Turganbayeva Zh.N. ON THE SOLVABILITY OF A NONLOCAL BOUNDARY VALUE PROBLEM FOR AN INTEGRO-DIFFERENTIAL EQUATION WITH INVOLUTION. Herald of the Kazakh-British Technical University. 2025;22(3):221-230. (In Russ.) https://doi.org/10.55452/1998-6688-2025-22-3-221-230