The literature downloader integrates almost all academic literature databases, such as Web of Science, Wiley, Elsevier(sciencedirect), EI (Engineering Index), HowNet, Wanfang, VIP, etc. , and many world-renowned journals covering all disciplines. Chinese and foreign academic documents can basically be found and are deeply loved by scholars. There is an application for free use on the home page, and the number of articles is unlimited. (If you often need to download documents, you can also join vip, and you can download many document database resources for free for a long time, such as one month, one year or several years. )
Open Access Library (OALib) allows scholars to download academic documents and papers for free, and publish their own papers on this platform. Provide open access to database resources.
FindaRticles is a powerful search engine that can get free published documents. Most of the documents it collects can be read or printed for free, including medical journals.
DOAJ？ (Open Access Periodical Catalogue), which includes academic and research periodicals, involves various disciplines and has the characteristics of free, full-text and high quality.
The National Library Reference and Consultation Alliance has a large-scale local literature database and characteristic resource database established by the domestic large-scale chinese numerals resource database and the National Public Library, providing online form consultation, literature consultation, telephone consultation, real-time online consultation and other services. Mainly used to download e-books, some of which can be obtained for free.
The National Academic Journal Database of Philosophy and Social Sciences (NSSD) is a national, open and public welfare information platform for philosophy and social sciences, which was approved by the National Leading Group of Philosophy and Social Sciences Planning and built by China Academy of Social Sciences. It contains more than 2,000 excellent academic journals,106,5438+000,000 scholars and 265,438+.