" ... a colloquium was held at the Technical University of Denmark on January 8, 2016, to deliver the Festschrift and presentations"--Preface.
Semantics, logics, and calculi : essays dedicated to Hanne Riis Nielson and Flemming Nielson on the occasion of their 60th birthdays. ISBN 9783319278094. Published by Springer in 2016. Publication and catalogue information, links to buy online and reader comments.