The first author of a paper must be the main contributor and direct creator of the paper (the author of the first draft), and at the same time be the direct person in charge of the work, enjoying more rights and undertaking more obligations. Unless otherwise specified, the first author is the first obligee, the first responsible person and the first obligor of the paper.

The correspondent is the author and the most important person in charge of the main academic ideas of the paper, and also the undertaker of the external responsibility of the paper, the owner of intellectual property rights, and the leader of the actual coordination of submission and reply to peer review opinions. Moreover, after the publication of the paper, the author can discuss and contact with readers all kinds of questions they have raised about the paper. Correspondents are usually the main leaders of scientific research projects. In the process of paper submission and publication, the correspondent should be responsible for all contacts with the editorial department and accept the consultation of readers. All manuscripts marked with the correspondent in the article, as well as all matters related to the manuscript, including mailing receipt, rejection, rejection, proofreading, page fee, manuscript fee, etc. , is in contact with the correspondent.

Compared with the two, the correspondent is more responsible for the publication of the paper, and needs to answer any questions related to the methods, processes, results and opinions in the paper, and has the right to decide the ranking of the authors, the publication and withdrawal of the paper.