cold forming. tube drawing. friction coefficientNecpal, Martin, 1978- Determination of the coefficient of friction under cold tube drawing using FEM simulation and drawing force measurement / aut. Martin Necpal, Maroš Martinkovič, Štefan Václav. -- DOI10.2478/rput-2018-0003. --. Martinkovič, Maroš, 1957-. Václav, Štefan, 1976- In: Vedecké práce MtF STU v Bratislave so sídlom v Trnave. Research papers Faculty of Materials Science and Technology Slovak University of Technology in Trnava. -- ISSN 1336-1589. -- Vol. 26, no. 42 (2018), s. 29-34.