Akimova, E.N., V.V. Vasin, G.Y. Perestoronina, L.Y. Timerkhanova, P.S. Martyshko, and D.Y. Koksharov. 2007. “On Regular Methods for Solving the Inverse Gravity Problems on Massively Parallel Computing Systems”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie) 8 (11):103-12. https://en.num-meth.ru/index.php/journal/article/view/251.