Drăgan, Nicușor. Dynamic Calculation of the Mechanical Transmissions With Gears and Elastic Shafts. Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XIV, Inginerie mecanică = Annals of “Dunarea de Jos“ University of Galati. Fascicle XIV, Mechanical Engineering 18, no. 1 (Juni 5, 2011): 23-26. Zugegriffen Dezember 14, 2025. https://gup.ugal.ro/ugaljournals/index.php/im/article/view/3757.