\bib{1992/gao}
\yr 1992
\mr 93j:12003
\by Shuhong Gao
\by Hendrik W. Lenstra, Jr.
\paper Optimal normal bases
\jour Designs, Codes and Cryptography
\issn 0925--1022
\vol 2
\pages 315--323
\url http://www.math.clemson.edu/~sgao/pub.html
\endref