ISSN: 1827-7888. 2007b The Third Dynasty: a chronological hypothesis, in: Proceedings of the Ninth__International Congress of Egyptologists, Grenoble, 6 – 12 septembre 2004, Leuven – Paris – Dudley, MA, pp.
2007a Sigilli regali della III Dinastia da Bet Khallaf (Abido), in: Atti del XI Convegno__Nazionale di Egittologia e Papirologia, Chianciano Terme 11-13 Gennaio 2007,__Agyptus 87, 2007, pp. 45-53. ISSN: 1827-7888. 2007b The Third Dynasty: a chronological hypothesis, in: Proceedings of the Ninth__International Congress of Egyptologists, Grenoble, 6 – 12 septembre 2004, Leuven – Paris – Dudley, MA, pp. 963-970. ISBN/ISSN: 9042917172.