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• Aberdeen University (1)
• Aston University Research Archive (1)
• BORIS: Bern Open Repository and Information System - Berna - Suiça (2)
• Bulgarian Digital Mathematics Library at IMI-BAS (1)
• CentAUR: Central Archive University of Reading - UK (3)
• Dalarna University College Electronic Archive (4)
• Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (290)
• Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
• National Center for Biotechnology Information - NCBI (4)
• Universitätsbibliothek Kassel, Universität Kassel, Germany (1)