http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
with a discussion of doubtful attributions
xiv, 427 pages : including tables, diagrams ; 23 cm.
the whole based on a study of his strophic versification,
by S. Griswold Morley and Courtney Bruerton. New York, The Modern Language Association of America [c1940].
Monograph series (Modern Language Association of America) ; 11