First of all, we should distinguish between paper retrieval reports and paper duplicate checking reports, and don't confuse them. The paper retrieval report is the proof that the paper is included in the literature database, and it is generally handed over to the sci-tech novelty retrieval station, which generally needs to be paid. Well-known university libraries in China can generally issue this kind of report with official seal. You have to consult your own school library where you can open the report with official seal.

1. First, enter the address of HowNet in the address bar of the browser, or directly search Baidu to find HowNet. Go to China HowNet page, and then click Advanced Search.

2. Enter the author's name, company name or school name in the column of the author and author unit of the advanced search page, click Search after the input is completed, and click the publishing time in the sorting option to sort the search results by year.

3. Select the paper to retrieve, and then click Export/Reference.

4. Next, you will jump to the page exported by Document Management Center, where you will select the paper you want to retrieve again, and then click Export/Reference.

5. Finally, you will jump to the document output page. Click Print.