The index of the paper is listed after the main body of the paper and before the references in the order of the cited documents or annotation numbers in the paper. Charts or data must indicate the source and provenance. When the reference is a periodical, the writing format is: [number], author, article title, periodical name (foreign abbreviation), year, number of volumes, number of issues and page number.
Function of retrieval number
The paper retrieval number is unique in the database, which makes the ID number of the paper beneficial to the management of database entries and the rapid retrieval of the paper. In addition, some search numbers can also reflect some properties of the paper, which is convenient for readers to understand quickly.
Refer to the above content: Baidu Encyclopedia-Paper Retrieval Number