Wolfenbüttel, Saarbrücken, Stockholm, Nevers

Wolfenbüttel, TU Berlin, Nevers, Stockholm

Regensburg, Tampere, TU Berlin

Regensburg, Tampere, TU Berlin, Budapest, Siegen

Budapest, Tampere, Regensburg, Siegen, Prague

Prague, Budapest, Padova, Stralsund, Siegen

Prague, Toronto, Erlangen, Coburg,

Toronto, Coburg, Prague, Erlangen