- Javier Gutiérrez García,
- Iraide Mardones-Pérez,
- Imanol Mozo Carollo,
Departament of Mathematics,
University of the Basque Country UPV/EHU, Spain.
- Tomasz Kubiak.
Faculty of Mathematics and Computer Science,
Adam Mickiewicz University (AMU), Poland.
- Jorge Picado.
Department of Mathematics,
University of Coimbra (UC), Portugal.
- Asier Estevan,
- Esteban Induráin.
Departament of Mathematics,
Public University of Navarre (UPNA), Spain.
- Ulrich Höhle.
Faculty of Mathematics und Natural Sciences,
University of Wuppertal, Germany.
- Aleš Pultr.
Department of Applied Mathematics,
Charles University, Czech Republic.