TY - JOUR AU - Kudratillo S. Fayazov AU - Yashin K. Khudayberganov TI - Ill-posed boundary-value problem for a system of partial differential equations with two degenerate lines JO - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika PY - 2019 SP - 392 EP - 401 VL - 12 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JSFU_2019_12_3_a13/ LA - en ID - JSFU_2019_12_3_a13 ER -