, 2001, Incommensurability and conceptual change during the copernican revolution, in H. Sankey (ed.), Incommensurability and related matters, Dordrecht, Springer, pp. 241-273.
with Ariew, R. , 1990, 'Introduction', Synthese 83 (2), 179-182.
, 1990a, 'Copernicus, the orbs, and the equant', Synthese 83 (2), 317-323.