1.
 |  | Title: Group Theory, Algebra, and Number Theory: Colloquium in Memory of Hans Zassenhaus, Held in Saarbrucken, Germany, June 4-5, 1993 by Hans Zassenhaus, Horst G. Zimmer ISBN: 3110153475 Publisher: Walter de Gruyter, Inc. Pub. Date: June, 1997 List Price: $159.30 Amazon.com Price: $159.30 |
2.
 |  | Title: Elliptic Curves: A Computational Approach (De Gruyter Studies in Mathematics, 31) by Susanne Schmitt, Horst G. Zimmer ISBN: 3110168081 Publisher: Walter de Gruyter, Inc. Pub. Date: January, 2004 List Price: $79.95 Amazon.com Price: $79.95 |
3.
 |  | Title: Number Theoretic and Algebraic Methods in Computer Science: Proceedings of the International Conference Moscow June/July 1993 by A. J. Van Der Poorten, Igor Shparlinski, Horst G. Zimmer, Alf J Van Der Poorten ISBN: 981022334X Publisher: World Scientific Pub Co Pub. Date: September, 1995 List Price: $68.00 Amazon.com Price: $68.00 |
4.
 |  | Title: Computational problems, methods, and results in algebraic number theory by Horst G. Zimmer ISBN: 0387058222 Publisher: Springer-Verlag Pub. Date: 1972 List Price: $9.00 Amazon.com Price: $9.00 |