TY - JOUR AU - S. Z. Djamalov AU - B. K. Sipatdinova TI - On a nonlocal boundary value problem of periodic type for the three-dimensional mixed-type equations of the second kind in an infinite parallelepiped JO - Vestnik KRAUNC. Fiziko-matematičeskie nauki PY - 2023 SP - 58 EP - 68 VL - 42 IS - 1 UR - http://geodesic.mathdoc.fr/item/VKAM_2023_42_1_a3/ LA - ru ID - VKAM_2023_42_1_a3 ER -