Principal component regression analysis with SPSS. - R. X. Liu; J. Kuang; Q. Gong; X. L. Hou (Comput. Methods Programs Biomed., 2003)

Skeletonization of Low-Quality Characters Based on Point Cloud Model. - X. L. Hou; Z. W. Liao; S. X. Hu (ICCSA (4), 2011)