How to check the retrieval certificate of papers and periodicals

Log on to the websites of journal official website and retrieval agencies.

1. Log in to official website: official website provides the service of paper retrieval certificate, and you can log in to official website to check the paper retrieval certificate.

2. Log on to the website of the search agency: After the paper is published, it will be included by multiple search agencies. You can check the retrieval certificates of papers and periodicals on the websites of these retrieval institutions, including HowNet and Wanfang Database.

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