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  • × author_ss:"Yu, L."
  1. Yu, L.: Geographic information systems in library reference services : development and challenge (1998) 6.48 
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  2. Yu, L.: Knowledge discovery in spatial cartographic information retrieval (1999) 6.48 
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  3. Gluck, M.; Yu, L.: Geographic information systems : Background, frameworks and uses in libraries (2000) 6.48 
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