>Keith Busby, 'Codices manuscriptos nudos tenemus': Alexander and the New Codicology, The Medieval French Alexander, SUNY Series in Mediaeval Studies, Albany N.Y, State University of New York Press, 2002
>Keith Busby, Codex and Context. Reading Old French Verse Narrative in Manuscript, New York, Rodopi, 2002
>JOHANN HEINRICH SPEICH, La Destructioun de Rome (d'après le ms. de Hanovre IV, 578), Langue and littérature françaises Série XIII, vol. 135, Bern, Lang Publications Universitaires Européennes, 1988