未知的味觉

http://oaister.umdl.umich.edu/o/oaister/
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.
7,605,729 records from 647 institutions