In general, the paper duplication checking tool will not include references in the calculation range of repetition rate. Because references refer to other documents, they are not original, so they should not be included in the calculation of repetition rate. However, some duplicate checking tools may contain references in the calculation range of repetition rate, which requires a detailed look at the descriptions of duplicate checking tools.

When writing a paper, in order to avoid being misjudged by the duplicate checking tool, it is suggested to indicate the source of the citation in the reference so that the duplicate checking tool can correctly identify it.