Duhanets , V., V. Pukas, V. Maisus, and S. Oleksijko. “HYDRAULIC PISTON ENGINE WITH CRANKSHAFT MECHANISM”. Podilian Bulletin: Agriculture, Engineering, Economics, vol. 1, no. 33, Dec. 2020, pp. 69-77, http://pb.pdatu.edu.ua/article/view/239539.