'Aristotle Theory of Division', in R.R.K. Sorabji (ed.)
Aristotle and After, Bulletin of the Institute of Classical Studies.
Supplementary Volume 68 (London 1997), pp. 127-146.
'Senarco di Seleucia e la Dottrina Aristotelica della Quinta
Sostanza', in C. Natali-S. Maso (eds.) Antiaristotelismo,
(Amsterdam 1999), pp. 92-123.
'División, Definitión y Differencia en los Topicos',
Anuario filosófico 35 (2002), pp. 297-312.
'A Late Ancient Discussion of Celestial Motion. PSI XIV
1400', in Papiri filosofici. Miscellanea di studi IV (Firenze
2002).
(Brief description: a study of PSI XIV 1400, a papyrus
fragment to be placed in the context of the sixth-century debate
on the stuff of the heavens. The edition, translation and commentary
will be also published in the Corpus dei Papiri Filosofici Greci
e Latini published by Olschki, Firenze).
Aristotele e la materia celeste, in M. Carrara, Mind and Meaning. Studi
di filosofia analitica (Padova 2003).
4 entries for The Dictionary of Nineteenth-Century British
Philosophers (Bristol, May 2002).
(Brief description: 'Benn, Alfred William'; 'Bussel, Frederick
William'; 'Chandler, Henry William'; 'Macmahon, John Henry'.
Each entry offers a glimpse of the subject's life, doctrine
and contribution to the history of ideas, and provides bibliographical
pointers to further research materials).
The entry 'Xenarchos von Seleukia' for Der Neue Pauly: Enzyklopädie der Antike (Stuttgart 2003).
8 entries for the Enciclopedia Filosofica (Milano, forthcoming).
(Brief description: 'Adrasto di Afrodisia', 'Andronico di Rodi', 'Diaresis',
'Epagoge', 'Differentia', 'Etere', 'Quinta essentia', 'Predicabile').
(together with Peter Machamer) Review of 'Neoplatonism and Nature:
Studies in Plotinus' Enneads', edited by Michael F. Wagner, in The Review of
Metaphysics, 56 (2003), pp. 688-690.
Review of Jonathan Barnes, 'Porphyry. Introduction', in
Ancient Philosophy (forthcoming).
Review of Vasilis Politis, 'Routledge Philosophy
Guidebook to Aristotle and the Metaphysics', in The Classical Review
56.2 (2006), pp. 303-306.
Review of Diana Quarantotto, 'Causa finale, sostanza,
essenza in Aristotele.' and Monte Ransome Johnson, 'Aristotle on
Teleology', in Rhizai 3.1 (2006): 111-118.