Ghent — Ghent, Belgium.
KU Leuven — Leuven, Belgium.
Groningen — Groningen, Netherlands.
Maastricht — Maastricht, Netherlands.
Erasmus — Rotterdam, Netherlands.
Utrecht — Utrecht, Netherlands.
Leiden — Leiden, Netherlands.
TU Delft — Delft, Netherlands.
UvA — Amsterdam, Netherlands.
RUB — Bochum, Germany.