FÁBIÁN, Gábor, and Lajos GERGŐ. 2015. “Adaptive Algorithm for Polyhedral Approximation of 3D Solids”. Studia Universitatis Babeș-Bolyai Mathematica 60 (2):277-93. https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/5736.