The citation part of the paper refers to the author quoting the research results, opinions or data of other scholars in the paper, and marking the source in the paper. This part usually occupies a part of the whole paper, and sometimes even occupies a large proportion. However, according to academic norms and moral standards, it is necessary and respected to quote other people's research results.

Therefore, in duplicate checking, the quoted part should not be included in the duplicate checking scope. The main purpose of duplicate checking is to detect whether there is plagiarism in the paper. The cited part is not the author's own original content and does not belong to the category of plagiarism. At the same time, the source of the cited part has also been clearly marked, which will not affect the duplicate checking results.

However, it should be noted that the citation part also needs to follow academic norms and moral standards. When quoting other people's research results, we should pay attention to the accuracy and completeness of the quotation, and we should not deliberately omit or modify other people's opinions, let alone discuss them as our own original content. In addition, the format of the citation part also needs to conform to academic norms, such as citation format and reference format.

To sum up, the cited part of the paper is not within the scope of duplicate checking, but the author needs to follow academic norms and moral standards when citing other people's research results. Only when the quotation part meets the standard can the author's academic level and research ability be better displayed.