Kolos, I.V., and M.V. Kolos. “Solution of the Linear Filtration Problem for Hyperbolic Systems”. Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie) 4, no. 4 (October 13, 2003): 283–293. Accessed April 27, 2024. https://en.num-meth.ru/index.php/journal/article/view/99.