Han, C. L., Wei, C. L. Julkaisussa Proceedings of First Joint International Pre-Olympic Conference of Sports Science and Sports Engineering. Volume III: Statistics and Managment in Sports. (2008)
Cheng. X., You, J., Sun, Z. Julkaisussa Proceedings of First Joint International Pre-Olympic Conference of Sports Science and Sports Engineering. Volume III: Statistics and Managment in Sports. (2008)