Rudolf Berghammer, Markus Müller-Olm. Formal Development and Verification of Approximation Algorithms Using Auxiliary Variables. In Maurice Bruynooghe, editor, Logic Based Program Synthesis and Transformation, 13th International Symposium LOPSTR 2003, Uppsala, Sweden, August 25-27, 2003, Revised Selected Papers. Volume 3018 of Lecture Notes in Computer Science, pages 59-74, Springer, 2003.
Abstract is missing.