Gruzdeva, T., Strekalovsky, A., Orlov, A., & Druzinina, O. (2011). Nonsmooth minimization problems for the difference of two convex functions. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), 12(30), 384–396. Retrieved from https://en.num-meth.ru/index.php/journal/article/view/474