If it is a graduation thesis or a master's thesis, you should write it well. Maybe there will be a defense teacher who is obsessed with this. If it is an undergraduate course, it depends on the severity of the school.
References are an indispensable part of scientific papers. Scientific papers without references or with few or outdated references are generally not innovative enough, and their scientific and academic value is in doubt. Therefore, a qualified or excellent scientific paper must be a scientific and comprehensive reference.
1, quantity requirements
General academic journals require at least three references to be indexed, and the more the better, but it is not simply piling up.
2, novelty or timeliness requirements
The latest references should be selected, the best in the last five years, because of the rapid development of science and technology, the rapid dissemination of scientific and technological information, and the short release period of new theories, technologies and methods. In order to increase the persuasiveness of the paper, new documents must be adopted in time.
Use works as little as possible, because the research period and publication period of works are long, which is easy to make their novelty worse or lose; To use more papers, it is best to separate literature from periodicals with short publishing cycle.
3, quality or level requirements
Try to choose the literature of high-level journals, such as citing papers from journals with high academic level. Usually, academic journals founded by famous universities or characteristic universities or famous societies are often cited. In addition, try to quote a certain number of foreign periodicals.
4. Types and labels
It mainly includes works, periodicals, conference proceedings, research reports, newspapers, standards, patent documents and electronic documents (online electronic announcements). Literature of "works and periodicals" is generally widely used.
The cited documents should be listed one by one after the article in the order in which they appear, and the contents of each description should be given one by one with reference to the manual. At the same time, we should mark the corresponding position in the article and pay attention to the correct and complete description of the references.
Extended data
According to GB3469-83 "File Types and File Carrier Codes", reference file types and file 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.
Baidu encyclopedia-graduation thesis