Serge Horbach Visiting researcher Name S.P.J.M. Horbach Telephone +31 71 527 2727 E-mail s.p.j.m.horbach@cwts.leidenuniv.nl Visiting researcher Faculteit der Sociale Wetenschappen CWTS Work address Willem Einthoven Kolffpad 1 2333 BN Leiden Contact +31 71 527 2727 s.p.j.m.horbach@cwts.leidenuniv.nl Publications