Ardelyan, N., & Sablin, M. (2012). Structural properties of grid operators in node implicit operator-difference schemes of two-dimensional gas dynamics on triangular grids and increasing the computational efficiency of object-oriented algorithms. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), 13(32), 352–365. Retrieved from https://en.num-meth.ru/index.php/journal/article/view/530