Rizzo, G., G. P. Massarotti, A. Bonanno, R. Paoluzzi, M. Raimondo, M. Blosi, F. Veronesi, A. Caldarelli, and G. Guarini. 2018. “Axial Piston Pumps Slippers With Nanocoated Surfaces to Reduce Friction”. International Journal of Fluid Power 16 (1):1-10. https://doi.org/10.1080/14399776.2015.1006979.