2Brassil J T, Low S, Maxemchuk N F. Copyright Protection for the Electronic Distribution of Text Documents. Proceedings of the IEEE,1999, 87(7): 1181-1196. 被引量：1
3Brassil J, Low S, Maxemchuk N F, et al. Electronic Marking and Identification Techniques to Discourage Document Copying. IEEE Journal on Sel. Areas in Commun., 1995, 13(8):1495-1504. 被引量：1
4Low S H, Maxemchuk N F, Lapone A M. Document Identification for Copyright Protection Using Centroid Detection. IEEE Transactions on Communications, 1998,46(5):372-383. 被引量：1
5Ding Huang, Hong Yan. Inter-word Distance Changes Represented by Sine Waves for Watermarking Text Images. IEEE Trans. on Circuits and Systems for Video Technology,2001,11 (12): 1237-1245. 被引量：1
6Kim Young-Won, Moon Kyung-Ae, Oh Il-Seok. A Text Watermarking Algorithm Based on Word Classification and Inter-word. In :Proceedings of the Seventh International Conference on Document Analysis and Recognition(ICDAR 2003), 2003. 被引量：1
