ASHYRALYEV, A.; URUN, M. On the Crank-Nicolson difference scheme for the time-dependent source identification problem. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 102, n. 2, p. 35–44, 2021. DOI: 10.31489/2021m2/35-44. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/410. Acesso em: 18 aug. 2025.