TY - JOUR AU - S. Z. Djamalov AU - B. K. Sipatdinova TI - A linear inverse problem for a three-dimensional mixed-type equation of the second kind, second order with semi-nonlocal boundary condition in an unbounded parallelepiped JO - Čelâbinskij fiziko-matematičeskij žurnal PY - 2024 SP - 471 EP - 482 VL - 9 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHFMJ_2024_9_3_a7/ LA - en ID - CHFMJ_2024_9_3_a7 ER -