1. Fraunhofer FIT and RWTH Aachen University, Aachen, Germany
2. TIB-Leibniz Information Centre for Science and Technology, Hannover, Gerrmany
3. Politecnico di Milano, Milano, Italy
4. Federal University of Pernambuco, Brazil
5. Technion Israel Institute of Technology, Haifa, Israel
6. RWTH Aachen University and Fraunhofer FIT, Aachen, Germany
7. Sapienza Università di Roma, Roma, Italy
8. Newcastle University, United Kingdom
9. TU Dortmund University and Fraunhofer ISST, Dortmund, Germany
10. IT University of Copenhagen, Copenhagen S, Denmark
11. Politecnico di Milano, Milano,, Italy