„The friction force dependence at simple pendulum sliders by relative speed and temperature of the surfaces in contact“, ANN_UDJG_IM, Bd. 21, Nr. 2, S. 31–34, Okt. 2014, Zugegriffen: Nov. 02, 2026. Verfügbar unter: https://ojs.ugal.ro/index.php/im/article/view/3548