DaeHun Nyang Akihiro Yamamura More Efficient Threshold Signature Scheme in Gap Diffie-Hellman Group. 1720-1723 2009 92-A IEICE Transactions 7 http://search.ieice.org/bin/summary.php?id=e92-a_7_1720&category=A&year=2009&lang=E&abst= db/journals/ieicet/ieicet92a.html#NyangY09