The functions of references mainly include:

? 1, which reflects the research foundation of researchers. Scientific research is inherited, and most of the research results are deepening and expanding the previous research.

? 2. Respect the knowledge achievements of predecessors and others. Reference is a form of expression of previous research results. Citing references is the author's right, while recording references is the author's legal obligation. It is considered plagiarism to cite previous data without listing references.

? 3. Reflect the author's scientific attitude. Explain that the arguments, materials and data cited in this paper are traceable for readers to consult.

? 4. Recommend a batch of selected documents to readers. References can provide clues for readers to discuss some issues in depth, help them consult the original literature, and further study the contents cited by the author, so as to verify their own views and solve their own needs.

? 5. Save the length of the paper. In scientific research papers, the author cites or draws lessons from other people's methods and viewpoints to prove his upcoming arguments. If you write down all the contents involved, sometimes the content of the paper is more complicated and the focus is not clear. The cited references are listed correctly, and what needs to be expressed in the paper need not be explained in detail in any existing literature, just mark the reference contribution number.

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