(2004): Frontmatter. Informatics and Student Assessment - Concepts of Empirical Research and Standardisation of Measurement in the Area of Didactics of Informatics. Bonn: Gesellschaft für Informatik. PISSN: 1614-3213. ISBN: 3-88579-435-7. Frontmatter. Schloss Dagstuhl. 19. - 24. September 2004
