Nonclassical Logics and Information Processing International Workshop, Berlin, Germany, November 9-10, 1990. Proceedings Pearce, David Heftet / 1992 / Engelsk
Logics in Artificial Intelligence 11th European Conference, JELIA 2008, Dresden, Germany, September 28-October 1, 2008. Proceedings Hölldobler, Steffen Heftet / 2008 / Engelsk
Towards Mathematical Philosophy Papers from the Studia Logica conference Trends in Logic IV Makinson David Heftet / 2010 / Engelsk
IfColog Journal of Logics and their Applications. Volume 3, number 3 Connexive Logics Wansing, Heinrich Heftet / 2016 / Engelsk
Truth and Falsehood An Inquiry into Generalized Logical Values Shramko Yaroslav Innbundet / 2011 / Engelsk
Truth and Falsehood An Inquiry into Generalized Logical Values Shramko Yaroslav Heftet / 2013 / Engelsk
