Milutinović, M., D. Movrin, D. Vilotić, M. Plančak, and R. Jovičić. “Influence of Prefom Shape on Die Load and Part Accuracy in Hot Forging of Pneumatic Clamp”. Advanced Technologies and Materials, vol. 34, no. 1-2, Dec. 2009, pp. 107-20, https://jged.uns.ac.rs/index.php/atm/article/view/jtp.2009.34.1-2.10.