Follow the article closely and leave two lines in the middle. References in the paper are marked at the end of the document. The format is:

[serial number] Principal. Title of the document [Document Type ID]. Place of publication: publisher, year of publication. Page number (optional).

Example:

Zhang Zhusheng 1. Invariant Sets of Differential Semi-dynamic Systems [D]. Beijing: Institute of Mathematics, Department of Mathematics, Peking University, 1983.

2. The theoretical stage of China's cultural system reform and the strategy of deepening the cultural system reform [J]. Hobugang, Fu Caiwu. China soft science. 2007(08)

Reference types and document types are 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.