1. The first method is to select the article option on the website of Long Yuan Journal, enter the article title in the search bar, and then click the search button (magnifying glass icon). Then, in the retrieval results, you can see the abstract and source of the paper.

2. The second method is to search papers in Long Yuan Library of Long Yuan Journal Network. Select Longyuan Library in the navigation bar of Long Yuan Journal Network and enter the title of the paper. After the search results come out, select the article.

3. The third method is to search papers from the periodical catalogue of Long Yuan Journal Network. That is, you can check the journals I contributed and the papers of the first issue on Long Yuan Journal Online. Select the Magazine option, enter the magazine name in the search field, and then click the Find button. Then select view all periodical numbers on the right, and finally select which issue of the year to view the article.