1. Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR (formerly FGAN-FHR) in Wachtberg, Germany
2. University of Pisa
3. Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR, Germany
4. Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR in Wachtberg
5. Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR in Wachtberg-Werthhoven (formerly FGAN), Germany
6. Fraunhofer Institute for High Frequency Physics and Radar Techniques FHR in Wachtberg, Germany