2. If the paper is completed by more than one person, the inclusion certificate of sci paper can only be applied by the first author of the paper. Other authors can use the first author's sci paper to prove it. In order to improve work efficiency, please send the first author who received the certificate of inclusion to other collaborators in time so that they can enjoy it!
3. University libraries can issue sci papers collection certificates and SSCI, EI and other collection services. The difference is that the author can directly search the EI database on the library homepage, save the results, and then provide them to the library information consulting department, and issue a certificate after verification (the EI inclusion certificate issued by the information consulting department is free).