Baligan, G. & Paratore, E. (1950). "Ancora su Ligdamo". Aevum, 24 (Fasc. 3), 270–299; p. 282.
jstor.org
McGann, M. J. (1970). "The Date of Tibullus' Death". Latomus. 29 (3): 774–780. JSTOR41527744.
Avery, W. T. (1960). "The year of Tibullus' death". The Classical Journal, 55(5), 205–209, argues that Tibullus died a little later than Virgil, some time between 17 and 12 BC; Levin, D. N. (1967). "The Alleged Date of Tibullus' Death". The Classical Journal, 62(7), 311–314 disagrees with Avery.
Putnam, Michael C. J. (1972), "Horace and Tibullus". Classical Philology, Vol. 67, No. 2 (Apr., 1972), pp. 81–88.