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Pisanski, J.; Zumer, M.: How do non-librarians see the bibliographic universe? (2008)
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Pisanski, J.; Zumer, M.: Mental models of the bibliographic universe : part 1: mental models of descriptions (2010)
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Pisanski, J.; Zumer, M.: Mental models of the bibliographic universe : part 2: comparison task and conclusions (2010)
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Pisanski, J.; Zumer, M.: User verification of the FRBR conceptual model (2012)
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