Log on to the website, find a paper by searching, and open the details page of this document, which clearly indicates the serial number and volume number of this article.

You can log on to HowNet and query the periodicals at the bottom of the page, enter the articles you need to find in the search bar, or quickly search according to your periodical category.

In addition, some periodicals have no volume number, because a general periodical is a volume in a year, and the year of publication is the representative of the volume number; There are still some periodicals that are not very standardized, so it is normal to have no volume number and no volume number.