在国外很多大学把自己的学位论文公布于网上,即electronic theses and dissertations (ETDs)项目，但是一般的搜索引擎难于发现，OAIster可以寻找到这些好东西：）
OAIster's goal is to create a collection of freely available, previously difficult-to-access, academically-oriented digital resources that are easily searchable by anyone.
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