Makarovskikh, Tatiana, and Egor Savitsky. “The Estimation of the Number of OE-Chains and Realizable OE-Routes for Cutting Plans With Combined Contours”. Yugoslav Journal of Operations Research 30, no. 4 (November 1, 2020): 483–498. Accessed August 25, 2025. https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/641.