MichaƂ Michalak. AN APPROACH OF PERFORMING ANALYSIS OF THE ORIENTATION OF SURFACES BY USING CGAL LIBRARY. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Informatics, Geoinformatics and Remote Sensing, 2018, pp. 19-26. https://doi.org/10.5593/sgem2018/2.2/s08.003