HowNet can query.
1, China hownet: hownet was initiated by Tsinghua University and Tsinghua Tongfang, and was established in June 1999. China HowNet has developed into a website integrating periodicals, doctoral dissertations, master's dissertations, conference papers, newspapers, reference books, yearbooks, patents, standards, Chinese studies and overseas literature resources through cooperation with periodicals, publishing circles and various content providers. The website of the Center is updated with more than 50,000 documents every day.
2. Wanfang Database: a professional academic database with the same name as China HowNet. Wanfang Database is a large-scale network database developed by Wan Fang Data Company, covering periodicals, conference minutes, papers, academic achievements, academic conference papers and so on.
3. VIP information: VIP information is a large-scale specialized data company under the Southwest Information Center of the Ministry of Science and Technology. China is the founder of periodical database construction, and has become the largest comprehensive literature database in China. VIP information network was established in 2000. After 10 years of commercial construction, it has become a world-renowned Chinese information service website, the largest comprehensive literature service network in China, a heavyweight partner of GOOGLE search, and the largest Chinese content cooperation website of GoogleScholar.
4. Long Yuan Journal Network: Source Journal Network1998 65438+was put into trial operation in February and opened in June, 1999. It is the world's largest Chinese periodical network, with complete online transaction settlement function and simplified and traditional conversion function. In addition, Baidu Academic and Google Academic also have some free papers. After knowing the website for inquiring papers, you can make valuable reference to others' papers, but you must not copy others' papers. After finishing the paper, if you don't know the repetition rate of your paper, you can use the paper detection system to detect it. I recommend you to use PaperPass here. Only when the thesis has passed the examination of the school can it graduate smoothly, so everyone must take it seriously!