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  • × theme_ss:"Suchtaktik"
  1. Xu, Y.: ¬The dynamics of interactive information retrieval behavior : part I: an activity theory perspective (2007) 9.50 
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    Xu, Y.
  2. Xu, Y.; Liu, C.: ¬The dynamics of interactive information retrieval : part II: an empirical study from the activity theory perspective (2007) 9.50 
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