What determines the sequence of authors in a publication?
The author who most substantially worked on the draft article and the underlying research becomes the first author. The others are ranked in descending order of contribution.
Can a research paper have two first authors?
Despite the growing number of guidelines, there are no recommendations in place to guide a paper that has been written by coauthors who have made equal contributions to the publication. Shared co-first authorship is defined as two or more authors who have worked together on a publication and contributed equally .
Who gets to be an author on a scientific paper?
These rules state that to be listed as an author, each researcher must meet three key criteria: they must have been involved in designing the project, collecting data or analysing the results; they must have participated in drafting or revising the manuscript; and they must have approved the final, published paper.