Design solutions overview of single-stage universal gear reducersMilan Rackov, Siniša Kuzmanović, Ivan Knežević, Maja Čavić, Marko Penčić, Vladimir B. Algin, Victor E. Starzhinsky and Sergey V. Shil’koMATEC Web Conf., 317 (2020) 01005DOI: https://doi.org/10.1051/matecconf/202031701005