Digital libraries and intellectual property
sun wei-hong1; liu xu-zhen2; zhuang li-hua3(1.library of rizhao people s hospital; rizhao 276826; shandong province; china; 2.library of binzhou people s hospital; binzhou 256610; shandong province; china; 3.rizhao library; rizhao 276800; shandong province; china)
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