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  • × year_i:[2010 TO 2020}
  • × author_ss:"Liu, Z."
  1. Jansen, B.J.; Liu, Z.; Simon, Z.: ¬The effect of ad rank on the performance of keyword advertising campaigns (2013) 0.02 
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  2. Liu, Z.; Jansen, B.J.: ASK: A taxonomy of accuracy, social, and knowledge information seeking posts in social question and answering (2017) 0.02 
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  3. Lu, W.; Li, X.; Liu, Z.; Cheng, Q.: How do author-selected keywords function semantically in scientific manuscripts? (2019) 0.02 
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