@InCollection{RCA:09,
author = "Reinert, B.",
title = {Introducing Reduction to Polycyclic Group Rings -- A Comparison of Methods},
year = "1996",
month = "October",
  booktitle = "Reports On Computer Algebra",
  publisher = "Centre for Computer Algebra, University of Kaiserslautern",
  number = 09,
  note ="Online available at http://www.mathematik.uni-kl.de/~zca"
}