Re: [Groff] does mom understand refer %X field?

[Anton Shterenlikht]

        From groff-bounces+mexas=bristol.ac...@gnu.org Thu Sep  6 18:37:05 2012
        > 
        > %X DOI: 10.1016/j.actamat.2010.03.013
        > 
        > Should I use %O for it if I want to use mom?

        If you want an annotation at the end of a reference, use %n rather
        than %X (which, you're right, mom doesn't recognize).

        %O inserts its text between the reference's title and the
        subsequent publication data.

ok, no problem.
However, %n is not mentioned in refer(1).
Is it a mom extension?
In other words, will %n work with other
macro packages, like mm, ms, etc.?

Thanks
Anton