European Research Structures, Opolka, U., & Yakes-Schröder, L. (1994). European Research Structures - Changes and Challenges: Institutional Aspects of European research policy. Max-Planck-Gesellschaft.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEuropean Research Structures, Uwe Opolka, और Lynne Yakes-Schröder. European Research Structures - Changes and Challenges: Institutional Aspects of European Research Policy. München: Max-Planck-Gesellschaft, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEuropean Research Structures, et al. European Research Structures - Changes and Challenges: Institutional Aspects of European Research Policy. Max-Planck-Gesellschaft, 1994.
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