1. Dumitrescu, S., Wu, X., Wang, Z.: Detection of LSB Steganography via Sample Pair Analysis. IEEE Transactions on Signal Processing 51(7) (July 2003)
2. Fridrich, J., Du, R., Meng, L.: Steganalysis of LSB Encoding in Color Images. In: Proceedings IEEE International Conference on Multimedia and Expo, York City, NY, July 30-August 2 (2000)
3. Katzenbeisser, S.: Breaking PGMStealth Using Laplace Filters, access from
http://stud3.tuwien.ac.at/~9625414/
4. Gonzalez, R.C., Wintz, P.: Digital Image Processing. Addison-Wesley Publishing Company, Inc., Reading (1997)
5. Fridrich, J., Goljan, M.: Practical Steganalysis of Digital Images - State of the Art,
http://www.ssie.Binghamton.edu/fridrich