, 2009, 'Multiple realization and methodological pluralism', Synthese 167 (3), 473-492.
, 2006, Explanation and causality in self-organizing systems, in B. Feltz, M. Crommelinck & P. Goujon (eds.), Self-organization and emergence in life sciences, Dordrecht, Springer, pp. 315-340.
, 1988, Objects and fields, in H. Otto & J. Tuedio (eds.), Perspectives on mind, Dordrecht, Springer, pp. 283-292.
, 1985a, Biological reductionism and genic selectionism, in J. H. Fetzer (ed.), Sociobiology and epistemology, Dordrecht, Springer, pp. 133-160.