Published in: Universitext

Published in: Handbuch der Informatik ; 1,5

Published in: Handbuch der Informatik ; 1.5

Published in: Lecture notes in mathematics ; 1407

Published in: Lecture notes in mathematics ; 897

Published in: Annals of Pure and Applied Logic, 156 (2008) 1, Seite 160-169

Published in: Bulletin of Symbolic Logic, 11 (2005) 2, Seite 249-312

Published in: Bulletin of Symbolic Logic, 6 (2000) 1, Seite 101-102

Published in: The Bulletin of Symbolic Logic, 6 (2000) 1, Seite 101-102

Published in: Studies in Logic and the Foundations of Mathematics (1998), Seite 209-335

Published in: The Bulletin of Symbolic Logic, 2 (1996) 2, Seite 159-188

Published in: Bulletin of Symbolic Logic, 2 (1996) 2, Seite 159-188

Published in: Annals of Pure and Applied Logic, 33 (1987), Seite 157-179

Published in: Lecture Notes in Mathematics (1989)

Published in: Manuscripta Mathematica, 8 (1973) 4, Seite 371-387

Published in: Annals of Pure and Applied Logic, 94 (1998) 1-3, Seite 7-19