#0 system/modules/core/library/Contao/Environment.php(215): __error()
#1 system/modules/core/library/Contao/Environment.php(59): Contao\Environment::httpAcceptLanguage()
#2 system/initialize.php(184): Contao\Environment::get()
#3 index.php(16): require('...')
#4 {main}
12.10.2017 - 13.10.2017
The annual Retreat will take place on October 12-13 on the campus of the university of Aachen.
The local organizer is Rudof Leube and his team. The contact person is Elke Broekmeulen (ebroekmeulen@ukaachen.de).
