Besides 30 EC of core courses, students must select 15 EC of specialization courses. Suggestions for specialization courses are indicated for each profile. You can find them here (under downloads).
The specialization courses have to be discussed with the mentor (assistant, associate or full professor from your specialization and approved by the Examination Committee. Most of these courses are 5 EC, some are 2.5 EC.
More information about the specialization courses can be found on Osiris course catalogue.