1 University Journals project website: https://universityjournals.eu .
2 Episciences: https://www.episciences.org/ .
3 Review Commons: https://www.reviewcommons.org/ .
4 CSIC Overlay Journal: https://digital.csic.es/ .
5 The European Open-Access Publishing Platform for Psychology hosted by the Leibniz Institute for Psychology Information in Trier: https://www.psychopen.eu/ .
6 Wellcome Open Research: https://wellcomeopenresearch.org/ .
7 Gates Open Research: https://gatesopenresearch.org/ .
8 F1000 Research: https://f1000research.com/ .
9 ARPHA: https://arphahub.com .
10 Peer Community In: https://peercommunityin.org/ .
11 University Journals Memorandum, University of Amsterdam, 1 June 2018, https:// www.universityjournal.eu/Memorandum%20University%20Journals .pdf.
12 Vrije Universiteit Amsterdam, Universidat de Barcelona, Technische Universiteit Delft, University of Groningen, Linköping University, Maastricht University, Universidad Carlos III de Madrid, Erasmus University Rotterdam, Tilburg University, Utrecht University, Wageningen University, University of Zurich, University of Amsterdam.
13 PICA Foundation: https://www.surf.nl/en/the-surf-cooperative/ pica-foundation-stichting-pica .
14 COPE: https://publicationethics.org .
15 San Francisco Declaration on Research Assessment (DORA) retrieved from https:// sfdora.org .