In general, it cannot be used as a reference. Baidu Encyclopedia belongs to an introduction of knowledge, or an explanation of terms or words. There is no academic value in itself, and it is not an academic paper. It is not recommended to quote.

The format of reference is: [serial number]+author of the work+title or title of the article+type of reference+year or year of publication of the work, volume (issue)+":page number (or page number range)".

The marking format of graduation thesis cited by others is (graduation thesis type is dissertation [D]):[ serial number] principal, document title [D], publishing place: publishing unit, publishing year: starting and ending page numbers (optional).

For example: [1 1] Zhang Zhusheng. Invariant set of differential semi-dynamic system [D]. Beijing: Institute of Mathematics, Peking University Department of Mathematics, 1983: 1-7.

Reference types and file types

According to GB3469-83 "File Type and File Carrier Code", it is identified by a single letter:

Monograph m; Newspaper n; Journal j; Patent document p; Compilation g; Ancient books o; Technical standards;

Dissertation d; Scientific and technological report; Reference tool k; Search tool w; File b; Tape a;

Chart q; Record l; Product sample x; Video tape v; Meeting minutes; Chinese translation test;

Music score I; Movie y; Manuscript h; Microfilm u; Slide z; Miniature flat film f; Other e.