Gatalo, R., Hodolič, J., Zeljković, M., Borojev, L., & Rekecki, J. (1984). The formalization of geometrical, calculation and tehnological informations as the base for CAD/CAM oriented programming systems . Journal of Production Engineering, 1(1), 13–43. https://doi.org/10.24867/JPE-1984-01-013