1. Library database: Most university libraries subscribe to various academic databases, such as JSTOR, EBSCO and ProQuest. These databases contain a large number of academic papers and books. You can directly search keywords to find relevant references.
2. Google Academic: Google Academic is a search engine dedicated to searching academic papers, which can search various academic resources, including journal papers, conference papers, degree papers and so on. You can directly check the full text of the document or quote it.
3.Webofscience: Webofscience is another important academic database, which contains the most influential academic journals in the world. In WebofScience, you can search by subject, author, institution and other ways to find relevant references.
4.Scopus:Scopus is the largest abstract and citation database in the world, covering more than 20,000 scientific, technical and medical journals of more than 5,000 publishing houses. In Scopus, you can search by subject, author, institution, etc., and find relevant references.
5. Direct access to the journal website: If you know which journal a paper is published in, you can directly visit the official website of the journal to find the full text or citation of the paper.
6. Use document management software: Document management software such as EndNote, Mendeley and Zotero can help us manage and organize references. These softwares usually have built-in literature search function, which can directly search related references.