Zeitschrift für Operations-Research, Volume 25

Volume 25, Number 1, February 1981

Volume 25, Number 2, March 1981

Volume 25, Number 3, May 1981

Volume 25, Number 4, July 1981

Volume 25, Number 5, August 1981

Volume 25, Number 6, October 1981

Volume 25, Number 7, July 1981

Volume 25, Number 8, December 1981

maintained by Schloss Dagstuhl LZI at University of Trier