| Social and economic conditions of student life in Europe D Orr, K Schnitzer, E Frackmann Bertelsmann, 2008 | 356* | 2008 |
| Open Educational Resources - A catalyst for innovation D Orr, M Rimini, D van Damme OECD Publishing, 2015 | 190 | 2015 |
| Performance-based funding as an instrument of competition in German higher education D Orr, M Jaeger, A Schwarzenberger The Routledge international handbook of higher education, 297-314, 2009 | 137 | 2009 |
| The European higher education area in 2012: Bologna Process implementation report. D Crosier, A Horvath, V Kerpanova, D Kocanova, T Parveva, S Dalferth, ... Education, Audiovisual and Culture Executive Agency, European Commission, 2012 | 100 | 2012 |
| Staatliche hochschulfinanzierung durch indikatorgestützte mittelverteilung M Leszczensky, D Orr Dokumentation und Analyse der Verfahren in 11, 2004 | 89 | 2004 |
| Bologna digital 2020 F Rampelt, D Orr, A Knoth White Paper on Digitalisation in the European Higher Education Area, 2019 | 77 | 2019 |
| ‘Second chance’routes into higher education: Sweden, Norway and Germany compared D Orr, E Hovdhaugen International journal of lifelong education 33 (1), 45-61, 2014 | 71 | 2014 |
| Guidelines on the development of open educational resources policies F Miao, S Mishra, D Orr, B Janssen UNESCO Publishing, 2019 | 62 | 2019 |
| How is digitalisation affecting the flexibility and openness of higher education provision? Results of a global survey using a new conceptual model. D Orr, M Weller, R Farrow Journal of interactive media in education 2019 (1), 2019 | 60 | 2019 |
| Models for online, open, flexible and technology enhanced higher education across the globe–a comparative analysis D Orr, M Weller, R Farrow International Council for Open and Distance Education, 2018 | 59 | 2018 |
| Staatliche Hochschulfinanzierung durch indikatorgestützte Mittelverteilung: Dokumentation und Analyse der Verfahren in 11 Bundesländern M Leszczensky, D Orr HIS, 2004 | 58 | 2004 |
| Can Performance-Based Funding and Quality Assurance Solve the State vs Market Conundrum? D Orr Higher Education Policy 18, 31-50, 2005 | 51 | 2005 |
| Open Educational Resources: A catalyst for innovation, educational research and innovation D Orr, M Rimini, D Van Damme Paris: Organisation for Economic Co-operation and Development (OECD), 2015 | 48 | 2015 |
| Higher education landscape 2030: A trend analysis based on the ahead international horizon scanning D Orr, M Luebcke, JP Schmidt, M Ebner, K Wannemacher, M Ebner, ... Springer Nature, 2020 | 46 | 2020 |
| Research assessment as an instrument for steering higher education—A comparative study D Orr* Journal of Higher Education Policy and Management 26 (3), 345-362, 2004 | 46 | 2004 |
| Evolving diversity: An overview of equitable access to HE in Europe AF Camilleri, K Mühleck BoD–Books on Demand, 2010 | 38 | 2010 |
| AHEAD-Internationales Horizon-Scanning: Trendanalyse zu einer Hochschullandschaft in 2030 D Orr, M Lübcke, P Schmidt, M Ebner, K Wannemacher, M Ebner, ... Hochschulforum Digitalisierung, 2019 | 32 | 2019 |
| Governance in German higher education: Competition versus negotiation of performance D Orr, M Jaeger International perspectives on the governance of higher education, 59-77, 2009 | 32 | 2009 |
| Social and economic conditions of student life in Europe. Synopsis of indicators D Orr, C Gwosc, N Netz Eurostudent IV 2011, 2008 | 32 | 2008 |
| Towards a European approach to micro-credentials: A study of practices and commonalities in offering micro-credentials in European higher education D Orr, M Pupinis, G Kirdulyte Publications Office of the European Union, 2020 | 31 | 2020 |