@techreport{
deVDeS:97-84,
author={R. de Vries and B. {D}e Schutter and B. {D}e Moor},
title={Minimal Realizations and State Space Transformations in the Symmetrized
Max-Algebra},
number={97-84},
institution={ESAT-SISTA, K.U.Leuven},
address={Leuven, Belgium},
month=dec,
year={1997}
}