VOLUME 4 1999 NUMBER 2

Eberhard Bertsch:
Abstract Comparison of Two Error Detection Techniques for Programming Languages77–86
Véronique Bruyère, Clelia de Felice:
On the Existence of Codings Between Trace Monoids87–100
James Currie, Holger Petersen, John Michael Robson, Jeffrey Shallit:
Separating Words with Small Grammars101–110
Clelia De Felice:
Hajós Factorizations of Cyclic Groups – A Simpler Proof of a Characterization111–116
Henning Fernau, Frank Stephan:
Characterizations of Recursively Enumerable Languages by Programmed Grammars with Unconditional Transfer117–142