Bibtex entry

@techreport{DeS:98-32,
author={B. {D}e Schutter},
title={Upper Bounds for the Index of Cyclicity of a Matrix},
number={98-32},
institution={ESAT-SISTA, K.U.Leuven},
address={Leuven, Belgium},
month=jul,
year={1999},
note={Revised version}
}