Rackov, Milan, Siniša Kuzmanović, Ivan Knežević, Maja Čavić, and Marko Penčić. 2020. “Analysis of Conceptual Solutions of Universal Helical Geared Reducers”. International Journal of Engineering and Management Sciences 5 (2): 64-72. https://doi.org/10.21791/IJEMS.2020.2.8.