Kulakov, I., Vologin, D. and Pickalov, V. (2013) “A multigrid algorithm for the fan-beam ROI-tomography of contrast objects”, Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie), 14(38), pp. 543–548. Available at: https://en.num-meth.ru/index.php/journal/article/view/665 (Accessed: 23 April 2024).