J.  Li, MacDonald, C. M., and Zheng, R., ?Stylometric feature selection for assessing review helpfulness?, The 18th Workshop on Information Technology and Systems (WITS). Paris, France, 2008.

R.  Zheng, Li, J., Chen, H., Huang, Z., and Qin, Y., ?A framework of authorship identification for online messages: Writing style features and classification techniques?, Journal of the Association for Information Science and Technology, vol. 57, no. 3, pp. 378-393, 2006.

J.  Li, Zheng, R., and Chen, H., ?From fingerprint to writeprint?, Communications of the ACM, vol. 49, no. 4, pp. 76-82, 2006.