Volume 19, Number 1, January 1989
Volume 19, Number 2, February 1989
Volume 19, Number 3, March 1989
Volume 19, Number 4, April 1989
Volume 19, Number 5, May 1989
Volume 19, Number 6, June 1989
Volume 19, Number 7, July 1989
Volume 19, Number 8, August 1989
Volume 19, Number 9, September 1989
Volume 19, Number 10, October 1989
Volume 19, Number 11, November 1989
Volume 19, Number 12, December 1989
Copyright © Fri Mar 12 17:32:42 2010
by Michael Ley (ley@uni-trier.de)