RETRACTED: Boundary value problems of degenerate integro-differential equations on the boundary of the region with application in filtrationAbdujabbor Abdurazakov, Anvarjon Fozilov, Nasiba Makhmudova and Nilufar MirzamakhmudovaE3S Web Conf., 538 (2024) 02029DOI: https://doi.org/10.1051/e3sconf/202453802029