Płonka, S., R. Przybytek, and P. Zyzak. “Production Process of a Tether to Fitting a Child Cars Seat in Passenger Cars”. Technologia I Automatyzacja Montażu (Assembly Techniques and Technologies), Vol. 91, no. 1, Mar. 2016, pp. 39-43, https://journals.prz.edu.pl/tiam/article/view/1373.