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author_ss:"Liu, Z."
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- author's%3a%22Roberts%2c C.%22 2
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Liu, Z.; Wang, C.: Mapping interdisciplinarity in demography : a journal network analysis (2005)
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Buckland, M.K.; Liu, Z.: History of information science (1995)
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- Date
- 13. 6.1996 19:22:20