Ernest Gardeñes, Honorino Mielgo, Albert Trepat. Modal Intervals: Reason and Ground Semantics. In Karl Nickel, editor, Interval Mathemantics 1985: Proceedings of the International Symposium, Freiburg i. Br., Federal Republic of Germany, September 23-26, 1985. Volume 212 of Lecture Notes in Computer Science, pages 27-35, Springer, 1985.
Abstract is missing.