The connection and difference between the core of Peking University and the core of Nantah: there are some cssci periodicals in the core catalogue of Peking University; There are also some core periodicals of Peking University in the core catalogue of Nantah, and some periodicals are dual-core periodicals.

Knowledge expansion:

1. The core of Peking University is the Chinese core periodical of Peking University Library, that is, the compendium of Chinese core periodicals jointly edited and published by Peking University Library and Peking University Library Periodical Work Research Association, which is revised every four years.

2. The core of Peking University is the identification of Peking University Library in conjunction with many authoritative experts in academic circles, which has been widely recognized by academic circles.

3. As far as influence is concerned, its ranking is one of the more authoritative divisions of its kind. It is the most authoritative academic influence besides NTU core and China Science Citation Database (cscd).

4. The core of NTU is the source periodical of Chinese social science citation index of Nanjing University, which is evaluated every two years.

Periodicals are published by periodical publishing units established according to law. Periodical publishing units must be approved by the General Administration of Press and Publication, hold a national unified serial publication number, and obtain a periodical publishing license. Periodicals are pamphlets formed during strikes, strikes or wars. The earliest periodical in China is German? Sinologist? Guo's biography of the East and the West, published in Guangzhou in July, 1833.