@incollection{Okada12, author = {Mitsuo Okada}, title = {Privacy-Secure Digital Watermarking for Fair Content Trading}, booktitle = {Applied Cryptography and Network Security}, publisher = {IntechOpen}, address = {Rijeka}, year = {2012}, editor = {Jaydip Sen}, chapter = {6}, doi = {10.5772/36378}, url = {https://doi.org/10.5772/36378} }