4[1]A-nsf-eu working groups continued ip. http://www.dli2.nsf.gov/eua.html 被引量：1
5[2]COPYRIGHT AND INTELLECTUAL PROPERTY RIGHTS (Beyond the Beginning the Global Digital Library). http://www.ukoln.ac.uk/services/papers/bl/blri078/content/repor～33.htm 被引量：1
6[3]Artificial Intelligence Lab download meta spider free download. 被引量：1
8[5]What is OLAP.The OLAP Report. http://www.olapreport.com/fasmi,htm 被引量：1
9[6]Search Engine Results over Time-A Case Study on Search Engines Stability. Cybermetrics, Vol2/3,issuel, partl, 1998/9. Available from Internet: http://www.cindoc.csic.es/cybermetrics/articles/v2/3ilpl.html 被引量：1
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