Illarionov, E. “Stationary Distribution for the Jacobi Equation With a Large Random Curvature Parameter”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), vol. 14, no. 35, Jan. 2013, pp. 38-43, https://en.num-meth.ru/index.php/journal/article/view/580.