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ÇóÖúÎÄÏס°Degrees of acyclicity for hypergraphs and relational databases" ÎÄÏ××÷ÕߣºFagin, R [ Last edited by javeey on 2010-5-2 at 12:17 ] |
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miaoer_feng(½ð±Ò+10): 2010-05-02 09:02
javeey:Â¥Ö÷¸øÄãµÄ½±ÀøºÃ·áºñ£¬¾Í²»´ÓÊýѧ°æµÄ½ð¿âÖиøÄã½±ÀøÁË 2010-05-02 12:21
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