Sakalauskas, Leonidas, and Kęstutis Žilinskas. “Epsilon-Projection Method for Two-Stage SLP”. Lietuvos matematikos rinkinys 48, no. proc. LMS (December 21, 2008): 320–326. Accessed May 3, 2025. https://www.journals.vu.lt/LMR/article/view/18117.