• Everything started with an unpublished draft of Berger, Hofmann, Schwichtenberg.
• Professor Schwichtenberg asked me to work out this draft in my diploma thesis. However, I choose a slightly different approach. See chapter two of my diploma thesis.
• Being proud of having finished my diploma thesis, I presented the result at the workshop on Implicit Computation Complexity. PS, Bib, Slides, some electronic references.
• However, the referee report demanded several changes. So there's a revised version which has no official status whatsoever.
• At ICC '00 it was decided to merge the two approachs to a joint paper with Berger, Hofmann, Schwichtenberg.
• Moreover, there are the Slides of my talk at the GKLI in January 01.
• The joint paper has been submitted in January 02.
• The paper has been accepted for publication in TCS. A final version has been worked out in May 03.
• It eventually appeared in TCS 318 (2004), 3-27.

$Date: 2008/12/01 13:26:32 $