Info Researchers Postdoctoral fellows within the framework of international mobility are highly-qualified researchers - mostly foreigners ( - in Dutch) - holding a PhD degree (obtained abroad) or equivalent. They conduct independent (no subsidiary relation), fundamental scientific research at KU Leuven, for a maximum period of 36 months. In order to register as a postdoctoral fellow, certain  must be met. Please read the  carefully. If you require more information or have any questions, do not hesitate to contact the  at the HR Department.   Research associates are highly-qualified researchers who conduct project-bound research at KU Leuven, in a subsidiary relation.   Self-supporting researchers are highly-qualified researchers and conduct fundamental or project-bound research at KU Leu
来源(Source From): http://www.kuleuven.be/english/admissions/researcher