Ching-Nung Yang, Yao-Yu Yang. New extended visual cryptography schemes with clearer shadow images. Inf. Sci., 271:246-263, 2014. [doi]
@article{YangY14-2,
title = {New extended visual cryptography schemes with clearer shadow images},
author = {Ching-Nung Yang and Yao-Yu Yang},
year = {2014},
doi = {10.1016/j.ins.2014.02.099},
url = {http://dx.doi.org/10.1016/j.ins.2014.02.099},
researchr = {https://researchr.org/publication/YangY14-2},
cites = {0},
citedby = {0},
journal = {Inf. Sci.},
volume = {271},
pages = {246-263},
}