1. ftp://ftp.dcs.shef.ac.uk/share/ilash/moby/mthes.tar.z
. FTP site.
2. http://www.dcs.shef.ac.uk/research/ilash/moby/index.html
. World Wide Web URL.
3. http://www.webster.com/cgi-bin/dictionary
. World Wide Web URL.
4. A. V. Aho, R. Sethi, and J. D. Ullman. Compilers Principles, Techniques, and Tools. Addison-Wesley, Reading, Mass., 1986.
5. Ross J. Anderson and Fabien A.P. Peiticolas. On the limits of steganography. IEEE Journal of Selected Areas in Communications, 16(4):474–481, May 1998.