Pacana, Jacek, and Rafał Oliwa. 2021. “Use of Rapid Prototyping Technology in Complex Plastic Structures. Part I. Bench Testing and Numerical Calculations of Deformations in Harmonic Drive Made from ABS Copolymer”. Polimery 64 (1):56-62. https://doi.org/10.14314/polimery.2019.1.7.