A few years ago, we will sort out a form, one * * * almost two thousand. I haven't tidied it up in years. Just look at HowNet. I know that every journal on the Internet is marked everywhere. HowNet basically covers all the cores of Peking University, but it seems that there are still a few books not included. But not much,

Enter HowNet, two links behind the search box, and enter the second one:

After going in, it's sauce purple:

Then search for the journal you want to query: for example, feed research, and enter the following page:

See the right? That is identity. It says that the core of Peking University is the core of the present, and there are previous identity records below.