@misc {IOPORT.70422602,
    author       = {Chen, Kuo-Nan and Lee, Chin-Feng and Chang, Chin-Chen},
    title        = {Embedding secret messages based on chaotic map and Huffman coding},
    howpublished = {ICUIMC, 336-341 (2009).},
    year         = {2009},
    doi          = {10.1145/1516241.1516299},
    identifier   = {70422602},
}