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  1. Chan, H.C.; Wei, K.K.; Siau, K.L.: ¬An empirical study on end-users' update performance for different abstraction levels (1994) 10.09 
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  2. Chan, H.C.; Wei, K.K.: Effect of grading schemes on outcomes in query writing experiments (1996) 10.09 
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  3. Chan, H.C.; Wei, K.K.; Siau, K.L.: ¬A system for query comprehension (1997) 10.09 
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  4. Chan, H.C.; Wei, K.K.: User query performance with database feedback (1999) 10.09 
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