I, along with two fellow doctoral students, am about to publish a paper supervised by our professor. Our professor is listed as the last author, which of course is fair as he supervised the project.
One of us, student A, is listed as the first author, which there is not disagreement on. Student B is listed afterwards, and I am the third listed author.
The ordering of student B and I is alphabetical, nothing more. This is also reasonable, as we all believe that our contribution has been the same.
However, it is not listed in the paper that our contributions are the same. Should I insist on this before submitting the paper?