Institution: | 1. Department of Computer and Information Sciences, University of Strathclyde, Livingstone Tower, 26 Richmond Street, Glasgow G1 1XH, United Kingdom;2. Department of Mathematics, Université de Liège, Grande Traverse 12 (Bât. B37), B-4000 Liège, Belgique;3. School of Computer Science, Reykjavik University, Menntavegi 1, 101 Reykjavik, Iceland |