1. Data Archiving and Networked Services, Royal Netherlands Academy of Arts and Sciences Anna van Saksenlaan 51, 2593 HW, The Hague The Netherlands
2. Elsevier Labs Radarweg 29, 1043 NX Amsterdam The Netherlands
3. Informatics InstituteUniversity of Amsterdam, Science Park 904 1098 XH Amsterdam The Netherlands
4. Elsevier Radarweg 29, 1043 NX Amsterdam The Netherlands
5. DataCite Welfengarten 1B, 30167 Hannover Germany
6. Faculty of Arts and Social SciencesMaastricht University Grote Gracht 82, SZ Maastricht, 6211 The Netherlands