http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
τ.1. I Clement, II Clement, Ignatius, Polycarp, Didache, Barnabas. -- τ.2. The shepherd of Hermas, the martyrdom of Polycarp, the epistle to Diognetus.
with an english translation by Kirsopp Lake.