1. Fragile water mark printed with two component inks and process. (Oct. 3-2006);Auslander Judith D;US Patent,2006
2. Gianmarco Baldini Igor Nai Fovino Riccardo Satta Aris Tsois and Enrico Checchi. 2015. Survey of techniques for the fight against counterfeit goods and Intellectual Property Rights (IPR) infringement. Publ Off Eur Union (2015) 1--130. Gianmarco Baldini Igor Nai Fovino Riccardo Satta Aris Tsois and Enrico Checchi. 2015. Survey of techniques for the fight against counterfeit goods and Intellectual Property Rights (IPR) infringement. Publ Off Eur Union (2015) 1--130.
3. Detecting printed image copies using phasespace-encoded fragile watermark. (Aug. 9-2011);Cordery Robert A;US Patent,2011
4. Fragile watermark for detecting printed image copies. (Nov. 4-2008);Haas Bertrand;US Patent,2008
5. Iuliia Tkachenko William Puech Olivier Strauss J-M Gaudin Christophe Destruel and Christian Guichard.2014. Fighting against forged documents by using textured image. In 2014-22nd European Signal Processing Conference (EUSIPCO). IEEE 790--794. Iuliia Tkachenko William Puech Olivier Strauss J-M Gaudin Christophe Destruel and Christian Guichard.2014. Fighting against forged documents by using textured image. In 2014-22nd European Signal Processing Conference (EUSIPCO). IEEE 790--794.