The authority of literature includes the authority of opinions, the authority of periodicals and the authority of authors. Authoritative literature refers to those classic, pioneering and influential documents in this field.

They are generally published in journals with high prestige in various research fields, and the authors are generally recognized experts and scholars. Selecting authoritative documents closely related to the research topic as reference documents can provide strong theoretical support for the applicant's research topic and increase the authority of the project basis.