搜狗学术

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百度文库 - 让每个人平等地提升自我

百度学术搜索，是一个提供海量中英文文献检索的学术资源搜索平台，涵盖了各类学术期刊、学位、会议论文，旨在为国内外学者提供最好的科研体验。

National Library of Australia

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