University of Bordeaux (France)
Uniwersytet Warszawski (Warsaw, Poland) Faculty of Mathematics, Informatics and Mechanics
Universitatea „Alexandru Ioan Cuza” din Iași (Iasi, Romania) Faculty of Mathematics
University of Perpignan (France) Laboratory of Mathematics and Physics (LAMPS)
Inria Sophia Antipolis – Méditerranée Research Centre (Sophia Antipolis, France)
Université de Liège (Belgique)
University of Padova (Italy) Department of Mathematics
Université de Toulouse III – Paul Sabatier (Toulouse, France), IRES (Institut de Recherche pour l’Enseignement des Sciences)
Babeș-Bolyai University (Cluj-Napoca, Romania), Faculty of Mathematics and Computer Science