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What are the websites that search for documents?
First, I would like to recommend several familiar paper search websites other than HowNet, Wanfang and VIP.

CiteSeerX

CiteSeerX is a free paper search network, which is the replacement product of CiteSeer. CiteSeer citation search engine is the first digital library of academic papers established by using Automatic Citation Index System (ACI). CiteSeerX's search interface is simple and clear. By default, it is document retrieval, and it also supports author and table retrieval. If you choose "IncludeCitations" to search, the search scope of periodical literature will be expanded, including not only the full-text database of academic literature, but also the references of each paper in the database. Click "Advanced Search" to enter the advanced search interface.

Advanced retrieval will increase the accuracy of retrieval. In addition to basic searches such as author, author unit and article title, it also supports more detailed searches such as text content and labels defined by users for papers.

National documentation center for philosophy and social sciences

The National Literature Center for Philosophy and Social Sciences is led by China Academy of Social Sciences and jointly established by the Ministry of Education and the State Administration of Press, Publication, Radio, Film and Television. It was officially put into operation on February 30, 20 16 16. It mainly provides four columns: information, resources, topics and services. Resources include Chinese periodicals, foreign periodicals, foreign books and ancient books, including more than 65,438+000,000,000 documents related to philosophy and social sciences, providing services such as cable reading and full-text downloading.

It also contains links to important government agencies, universities, academic institutions and databases in the field of philosophy and social sciences at home and abroad for the convenience of readers. The national academic journals of philosophy and social sciences, foreign academic journals and the database of scientific research achievements of China Academy of Social Sciences have been initially formed.

Find articles

As a search engine for literary papers, information search articles provide tens of millions of papers in various top publications, covering art, business, computer, science and technology and other aspects. Most of this website is free full-text information, and the retrieval operation is simple and the search is very convenient.

FindaRticles come from a wide range of sources, mainly from magazines, periodical publications and newspapers.

High altitude steel wire

HighWire is an electronic journal of academic literature of Stanford University, which was founded by Stanford University Library. It is one of the largest publishers of academic documents in the world, and also the largest library of free scientific journals in the world. The collected periodicals cover the following disciplines: life science, medicine, physics and social science. Just enter keywords to find the content and provide free full-text reading.

CiteSeerX

It is a free paper search network, which is the replacement product of CiteSeer. CiteSeer citation search engine is the first academic paper digital library established by using automatic citation index system (ACI). CiteSeerX's search interface is simple and clear. By default, it is document retrieval, and it also supports author and table retrieval. If you choose "IncludeCitations" to search, the search scope of periodical literature will be expanded, including not only the full-text database of academic literature, but also the references of each paper in the database. After introducing our sharp weapon for consulting papers, we learned the skills of collecting information that everyone is most concerned about. The following will introduce some dry goods in collecting literature ~

Literature introduction

The main purpose of document collection is to find some "recent" comprehensive documents in this field, usually papers published no more than three years ago. Generally speaking, English review documents have the words "review" (generally public review) or "investigation" (generally professional review) in their titles.

The content of the summary article is not to study a specific problem, but to review and comment on the research status of a certain field in the recent or past period, and to comment on the research characteristics of different researchers and different periods, and finally to predict the future research direction and the possibility of innovation.

Network retrieval skills

Google is a good library. As the full text of foreign papers is usually in pdf format, it is suggested to add "pdf" as a keyword search before entering the name of the paper. If you can't find the papers you need through these full-text databases, you might as well write down the page numbers of the journals that publish the papers, and then search their working papers on Google. If you can't collect it, you can also try to search the author's home page. If you still don't have it, you can try to write directly to ask for it through the author's mailbox. If all these methods have been tried, you can also consult domestic collections in EBSCO for help.

Finally, trying all the above methods can't get a certain document, either giving up reluctantly, or asking for help from foreign friends, or indirectly quoting other documents.