@InCollection{RCA:08,
author = "Siebert, T.",
title = "On strategies and implementations for computations of free resolutions",
year = "1996",
month = "September",
  booktitle = "Reports On Computer Algebra",
  publisher = "Centre for Computer Algebra, University of Kaiserslautern",
  number = 08,
  note ="Online available at http://www.mathematik.uni-kl.de/~zca"
}