For something more recent, how about the article called something like "Virgil's Tomb" by J.B. Trapp, possibly originally published in the Journal of the Warburg and Courtauld Institutes, and also available in Trapp's collected essays in the Variorum Reprint series called something like Studies in the Classical Tradition. I'm not sure it has what you want, but it's probably worth a look.
Cheers, Jess Paehlke ----------------------------------------------------------------------- To leave the Mantovano mailing list at any time, do NOT hit reply. Instead, send email to [EMAIL PROTECTED] with the message "unsubscribe mantovano" in the body (omitting the quotation marks). You can also unsubscribe at http://virgil.org/mantovano/mantovano.htm#unsub