Tim French, Mark Reynolds. A Sound and Complete Proof System for QPTL. In Philippe Balbiani, Nobu-Yuki Suzuki, Frank Wolter, Michael Zakharyaschev, editors, Advances in Modal Logic 4, papers from the fourth conference on Advances in Modal logic, held in Toulouse (France) in October 2002. pages 127-148, King s College Publications, 2002.
Abstract is missing.