Alahadi, M. J. S., Shirneshan, A. and Kolahdoozan, M. (2017) “Experimental investigation of the effect of grooves cut over the piston surface on the volumetric efficiency of a radial hydraulic piston pump”, International Journal of Fluid Power, 18(3), pp. 181–187. doi: 10.1080/14399776.2017.1337440.