@inproceedings{1996-helleseth
,note={URL: {\tt http://link.springer.de/link/service/series/0558/bibs/1109/11090031.htm}}
,author={Tor Helleseth and Thomas Johansson}
,crossref={1996-koblitz}
,MR={98g:94028}
,pages={31--44}
,title={{Universal hash functions from exponential sums over finite fields and Galois rings}}
,year={1996}
}