Yasuyuki Sakai Kouichi Sakurai Algorithms for Efficient Simultaneous Elliptic Scalar Multiplication with Reduced Joint Hamming Weight Representation of Scalars. 484-500 2002 conf/isw/2002 ISC http://link.springer.de/link/service/series/0558/bibs/2433/24330484.htm db/conf/isw/isc2002.html#SakaiS02