The zdatr software ©1995-97 University of Bielefeld (Christoph Schillo & Dafydd Gibbon) may be freely distributed to anyone or modified by anyone provided this copyright notice is included verbatim in all distributions of any such distributed or modified version, and provided any such modified version is not named `zdatr'.
This document refers to zdatr program Version 1.1 and its forthcoming sub-versions.
Earlier versions (Version 1.0 and Version 1.01) are obsolete and may no longer be used or distributed.