Pylypaks, S, and A Chepignyi. 1. “General Approach to Finding the Kinematic Characteristics of the Drives of Plane Mechanisms With the Application of Frene-Serret Frame and Frenet Formulas”. Bulletin of Sumy National Agrarian University. The Series: Mechanization and Automation of Production Processes, no. 4 (38) (1), 48-56. https://doi.org/10.32845/msnau.2019.4.11.