Xiaodong Lin Rongxing Lu Haojin Zhu Pin-Han Ho Xuemin Shen Provably Secure Self-Certified Partially Blind Signature Scheme from Bilinear Pairings. 1530-1535 2008 ICC http://dx.doi.org/10.1109/ICC.2008.296 conf/icc/2008 db/conf/icc/icc2008.html#LinLZHS08