1. Check the paper you want to select, as shown. If you want to clear the newly selected paper, you can have a dark clear button on the right side of the selected document, which is not easy to see. Click Clear to clear the paper you just selected.

2. Click Export Reference to enter the page as shown in the figure.

3. On the right side of the page, you can select the reference format you want to export. We usually choose the second one, but we choose it according to our personal needs.

4. After selecting the format, you can export the reference. You can copy and paste directly into the document, or click xls and doc to directly generate a document or table, and choose according to your own needs.