TURMETOV, B.Kh.; USMANOV, K.I. On solvability of exterior boundary value problem with boundary operators of fractional order. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 84, n. 4, p. 139–145, 2016. DOI: 10.31489/2016m4/139-145. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/137. Acesso em: 23 aug. 2025.