Lee, JW, Kim, HG, Park, JW, Choi, YH & Suh, JH 2017, Measuring work efficiency of the rock-crushing operation of the hydraulic system. in VH Duy, TT Dao, I Zelinka, SB Kim & NT Tien (eds), AETA 2016: Recent Advances in Electrical Engineering and Related Sciences - Theory and Application. Lecture Notes in Electrical Engineering, vol. 415 LNEE, Springer Verlag, pp. 723-728, Proceedings of the ...