@article{1993-schirokauer
,note={URL: {\tt http://www.jstor.org/sici?sici=0962-8428(19931115)345:1676<409:DLALU>2.0.CO;2-1}}
,author={Oliver Schirokauer}
,ISSN={0962--8428}
,journal={Philosophical Transactions of the Royal Society of London Series A}
,MR={95c:11156}
,pages={409--423}
,title={{Discrete logarithms and local units}}
,volume={345}
,year={1993}
}