ผู้เขียน: Jouko Vaananen

Samson Abramsky, Christopher Strachey Professor of Computing, Department of Computer Science, Oxford University, UK Juha Kontinen, Academy Research Fellow, Department of Mathematics and Statistics, Helsinki University, Finland Jouko Väänänen, Dean of the Faculty of Science and Professor,  Department of Mathematics and Statistics, Helsinki University, Finland; Professor, University of Amsterdam, The Netherlands Heribert Vollmer, Faculty of Electrical Engineering and Computer Science, Theoretical Computer Science Institute, University of Hannover, Germany