Naude, J., Z. Hoffman, L. Cser, and P. Tamas. 2001. “Parametric/Geometrical Modelling of Forged Part Families via a Cad Interface towards on-Line Internet Based Manufacturing and Cost Parameter Prediction of Designed Products”. Advanced Technologies and Materials 26 (1):1-9. https://atm-journal.uns.ac.rs/index.php/atm/article/view/jtp.2001.27.1.1.