@article{JSFU_2019_12_3_a13,
     author = {Kudratillo S. Fayazov and Yashin K. Khudayberganov},
     title = {Ill-posed boundary-value problem for a system of partial differential equations with two degenerate lines},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {392--401},
     publisher = {mathdoc},
     volume = {12},
     number = {3},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2019_12_3_a13/}
}