Akhmerova, I.G., and A.S. Pravdivtsev. “Local Solvability of a Boundary Value Problem for One-Dimensional Motion of a Granular Matter”. Izvestiya of Altai State University0, no. 4(132) (September 14, 2023): 59-63. Accessed May 19, 2024. http://izvestiya.asu.ru/article/view/%282023%294-08.