1. Celik, M.U., Sharma, G., Tekalp, M.A., Saber, E.: Reversible Data Hiding. In: Proceedings of International Conference on Image Processing, Rochester, NY, USA, September 24, vol. 2, pp. 157–160 (2002)
2. Honsinger, C.W., Jones, P.W., Rabbani, M., Stoffel, J.C.: Lossless Recovery of an Original Image Containing Embedded Data. US Patent # 6,278,791 (August 2001)
3. Fridrich, J., Goljan, M., Du, R.: Invertible Authentication. In: Proc. of SPIE Photonics West, Security and Watermarking of Multimedia Contents III, San Jose, California, USA, January 2001, vol. 3971, pp. 197–208 (2001)
4. Fridrich, J., Goljan, M., Du, R.: Lossless Data Embedding – New Paradigm in Digital Watermarking. Special Issue on Emerging Applications of Multimedia Data Hiding 2, 185–196 (2002)
5. Tian, J.: Wavelet-based reversible watermarking for authentication. In: Proc. Security and Watermarking of Multimedia Contents IV, Electronic Imaging 2002, January 20-25, vol. 4675, pp. 679–690 (2002)