Skyba М., Stechyshyn М., Oleksandrenko В., Lukianiuk М., and Botvin М. “Increasing of Cultivator Paws Wear Resistance by Modification by Hydrogen-Free Nitriding in Glow Discharge”. Bulletin of Lviv National Environmental University. Series Agroengineering Research, no. 24, Apr. 2023, pp. 109-14, doi:10.31734/agroengineering2020.24.109.