Ughelli I, p. 1427, places Justus second in his list of bishops, before Elpidius, and therefore before 496. Leoncini, p. 235, gives Justus the date of 530, and connects his flight from Africa with the persecution of orthodox Christians by Arians. Lanzoni, pp. 559-562. See J. Stilting's critical comments on the chronology, in: Joannes Pinius; Joannes Stilting; Joannes Limpenius (1756). Acta Sanctorum Septembris. Sebastian Colet (em latim). Tomus I. Venice: [s.n.] pp. 389–409, at 391
Benedictus XIV (1842). «Lib. I. caput secundum. De Synodi Dioecesanae utilitate». Benedicti XIV ... De Synodo dioecesana libri tredecim. Hanicq (em latim). Tomus primus. Mechlin: [s.n.] pp. 42–49 John Paul II, Constitutio Apostolica de Synodis Dioecesanis Agendis (March 19, 1997): Acta Apostolicae Sedis 89 (1997), pp. 706-727.
Benedictus XIV (1842). «Lib. I. caput secundum. De Synodi Dioecesanae utilitate». Benedicti XIV ... De Synodo dioecesana libri tredecim. Hanicq (em latim). Tomus primus. Mechlin: [s.n.] pp. 42–49 John Paul II, Constitutio Apostolica de Synodis Dioecesanis Agendis (March 19, 1997): Acta Apostolicae Sedis 89 (1997), pp. 706-727.