7Ren Luquan,Yan Beizhan,Cong Qian.Expermental Study on Bionic Non-Smooth Surface Soil Electro0osmosis[J].International Agricultural Engineering Jorunal,1999,8(3):185-196.
8Li Jianqiao,Ren Luquan,Cui Zhanrong,et al.Experiments on Plow moldboards with Bionics Unsmoothed Surface[A]. Proceedings of 13th Conference of the ISTVS[C]. Munich Germany,1999:241-248.
9Qaisrani A R,Chen Bingcong,Ren Luquan.Modified and Unsmoothed Plow Surfaces-a Means to Reduce Plowing Resistance[J]. Intermational Agricultural Engineering Journal,1999,1(3):115-124.
10Ren Luquan,Tong Jin,Zhang Shujun,Reducing Sliding Resistance of Soil Against Bulldozing Plates by Unsmoothed Bionics surface[J].Journal of Terramechanics,1995,32(6):303-309.
