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Liu, Z.; Wang, C.: Mapping interdisciplinarity in demography : a journal network analysis (2005)
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Liu, Z.: ¬The evolution of documents and its impacts (2004)
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Wan, G.; Liu, Z.: Content-based information retrieval and digital libraries (2008)
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Liu, Z.: Citation theories in the framework of international flow of information : new evidence with translation analysis (1997)
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Rada, R.; Liu, Z.; Zheng, M.: Connecting educational information spaces (1997)
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Liu, Z.: Print vs. electronic resources : a study of user perceptions, preferences, and use (2006)
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Liu, Z.; Huang, X.: Gender differences in the online reading environment (2008)
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