@inproceedings{1990-bos ,note={URL: {\tt http://cr.yp.to/\allowbreak bib/\allowbreak entries.html\#\allowbreak 1990/\allowbreak bos}} ,author={Jurjen Bos and Matthijs Coster} ,crossref={1990-brassard-book} ,pages={400--407} ,title={{Addition chain heuristics}} ,year={1990} }