Carlo Blundo, Alfredo De Santis, Douglas R. Stinson. On the Contrast in Visual Cryptography Schemes. IACR Cryptology ePrint Archive, 1996:13, 1996. [doi]
@article{BlundoSS96, title = {On the Contrast in Visual Cryptography Schemes}, author = {Carlo Blundo and Alfredo De Santis and Douglas R. Stinson}, year = {1996}, url = {http://eprint.iacr.org/1996/013}, researchr = {https://researchr.org/publication/BlundoSS96}, cites = {0}, citedby = {0}, journal = {IACR Cryptology ePrint Archive}, volume = {1996}, pages = {13}, }