Carsten Schürmann. The Twelf Proof Assistant. In Stefan Berghofer, Tobias Nipkow, Christian Urban, Makarius Wenzel, editors, Theorem Proving in Higher Order Logics, 22nd International Conference, TPHOLs 2009, Munich, Germany, August 17-20, 2009. Proceedings. Volume 5674 of Lecture Notes in Computer Science, pages 79-83, Springer, 2009. [doi]
Abstract is missing.