2. Generally speaking, the core journals refer to the journals that were rated as core journals in the Compendium of China Core Journals compiled by Peking University. The statistical source journals of scientific papers in China are usually called "source journals" and also called the core journals of science and technology in China.

3. The "core journals" of Peking University are important journals in various disciplines, and statistical analysis is made by bibliometrics. Many institutions regard it as the list of core journals in China, but not all institutions regard it as the only list of core journals; "Source Periodicals" is an important periodical catalogue selected by the Ministry of Science and Technology. As the annual statistics of the number of papers published by domestic institutions, only the papers published in Source Journal can be counted by the Ministry of Science and Technology. If it is not a "source journal", even the core journals of Peking University cannot be counted. Therefore, many institutions also attach great importance to "source journals".

The most important thing is the purpose of your paper. If you evaluate the professional title, finally consult the personnel management department of your institution. If you apply for a degree, consult the graduate school. Because different institutions, different majors and different purposes may have different regulations, the list of core journals will be different. Some units will also stipulate different core journals for different professional groups, that is, professional counterparts.