David A. Schmidt. Structure-Preserving Binary Relations for Program Abstraction. In Torben Æ. Mogensen, David A. Schmidt, Ivan Hal Sudborough, editors, The Essence of Computation, Complexity, Analysis, Transformation. Essays Dedicated to Neil D. Jones [on occasion of his 60th birthday]. Volume 2566 of Lecture Notes in Computer Science, pages 245-268, Springer, 2002. [doi]
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