Volume XXX, Issue 1, 2020 Most General Algebraic Specifications for an Abstract Datatype of Rational Numbers, pages 1-24 Authors: J.A. Bergstra Abstract | References | BibTeX | Full Text (PDF) An Optimum Lower Bound for the Weights of Maximum Weight Matching in Bipartite Graphs, pages 25-37 Authors: S. Das Abstract | References | BibTeX | Full Text (PDF) A Modified Decomposition Algorithm for Maximum Weight Bipartite Matching and Its Experimental Evaluation, pages 39-67 Authors: S. Das Abstract | References | BibTeX | Full Text (PDF) A Complete Axiomatisation for Probabilistic Trace Equivalence, pages 69-104 Authors: F. Timmers, J.F. Groote Abstract | References | BibTeX | Full Text (PDF)