Supplementary information:

How to query papers quickly and effectively?

Method 1: By asking experienced people, you can get accurate paper topics or other keywords, which makes the paper query process more concise and time-consuming.

Method 2: Get to know the leading figure in the corresponding professional field, get the specific information of relevant literature by searching his name, and finally search the website with papers.

Method 3: Make full use of the screening function of the paper inquiry website. If you only know a certain aspect of a paper, but have no clear concept, you need to make full use of the advanced search and screening function of the website, input keywords in the search bar, and then filter according to the conditions to obtain dozens or even hundreds of relevant information.

What papers are there on the website?

Even if I know how to query papers, I can't find a reliable paper query website. For college students, we must make full use of the school's electronic library. Major universities will buy paper databases. The more funds the school invests, the richer the database will be. Therefore, the data of some university libraries may be very limited, and the use of school electronic libraries also has many restrictions. They can only log in through the campus network. At this point, they need to use off-campus websites.