Shenghui Su Yongquan Cai Changxiang Shen The Banknote Anti-forgery System Based on Digital Signature Algorithms. 44-49 2008 ISI Workshops http://dx.doi.org/10.1007/978-3-540-69304-8_5 conf/isi/2008w db/conf/isi/isiw2008.html#SuCS08