DOAJDOAJ(Directory of Open Access Journal),由瑞典的隆德大学图书馆Lund University Libraries设立于2003年5月,DOAJ的优势在于收录的期刊的有着严格的质量控制,包括很多SCI收录的期刊。DOAJ收录的OA期刊数量非常多,属于目前最好的的OA期刊目录网站。目前DOAJ除了查询OA期刊外,还可以查询部分期刊的文章内容。日前DOAJ收录了5691份学术期刊,其中2436份期刊可以搜索到文章内容,大概有478311篇论文
zoteroZotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.| 论文文献管理工具
PapersWithCodePapers With Code highlights trending Machine Learning research and the code to implement it.
OALibOpen Access Library (www.oalib.com) is an academic search engine and publisher. You can download research papers for free and submit your paper to it. It is a shared academic database.