Some papers have co-first authors, which are supposed to have contributed equally. However, there is still an order issue.
Imagine a paper co-authored by A, B, and C. The paper goes like:
A Very Long Paper Title A*, B*, and C Our work is good. ----- * A and B contributed equally to the work.
In this case, is it acceptable for B to cite this paper as follows in his/her CV?
B*, A*, and C. A Very Long Paper Title. Journal of Stack Exchange. Jan. 2015. (* indicates the co-first authorship)
Note the position swap.