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Spink, A.: Multiple search sessions model of end-user behaviour : an exploratory study (1996)
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Spink, A.; Ozmutlu, H.C.; Ozmutlu, S.: Multitasking information seeking and searching processes (2002)
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Li, X.; Schijvenaars, B.J.A.; Rijke, M.de: Investigating queries and search failures in academic search (2017)
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