Pange lingua gloriosi proelium certaminis et

This text is very well known as a Hymn. There is no other reference for this text used as an antiphon. The only other reference that is not a Hymn is to be found in F-AN : Ms 0091 at 121r where it is used as an antiphon verse (Cantus ID 001962a) for the antiphon Crux fidelis, that is actually the previous antiphon also found in this fragment.