Finite Automata, Their Algebras and GrammarsJ. Richard Büchi, Dirk Siefkes · First published 2013Open the Tome
Formale Methoden und kleine SystemeDirk Siefkes · First published 1992 · Latest edition 2012Open the Tome
Pioniere der InformatikW. Brauer, Dirk Siefkes, Anette Braun, Peter Eulenhöfer, Heike Stach · First published 1999Open the Tome