Milyukova, Olga Yu. “MPI+OpenMP Implementation of Conjugate Gradients Method With Preconditioner of the Block Incomplete Inverse Triangular Decomposition of the First Order”. Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie) 23, no. 73 (August 23, 2022): 191–206. Accessed December 14, 2025. https://en.num-meth.ru/index.php/journal/article/view/1225.