http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ariadne auf Naxos of Hugo von Hofmannsthal and Richard Strauss
by Donald G. Daviau and George J. Buelow.
"Hugo von Hofmannsthal: a select bibliography": pages 254-264.
"Richard Strauss: a select bibliography": pages 265-269.
University of North Carolina studies in the Germanic languages and literatures ; no. 80