@inproceedings{1997-vonzurgathen ,note={URL: {\tt http://math-www.uni-paderborn.de/~aggathen/Publications/publications.html}} ,author={Joachim von zur Gathen and Michael N\"ocker} ,crossref={1997-mora} ,MR={99c:68123} ,pages={88--133} ,title={{Exponentiation in finite fields: theory and practice}} ,year={1997} }