Professors UniID Please fill out this field using the example format provided in the placeholder. The phone number will be handled in accordance with GDPR. Count Persons (2) Contact Phone E-Mail Details Prof. Dr. Gabriel Schaaf +49 228 73-2851 gabriel.schaaf@uni-bonn.de Prof. Dr. Matthias Wissuwa +49 228 73-2853 mwissuwa@uni-bonn.de