with Longo, G. , 2018, Rhythms, retention and protention: philosophical reflections on geometrical schemata for biological time, in D. Danks & E. Ippoliti (eds.), Building theories, Dordrecht, Springer, pp. 245-259.
, 2012a, 'A symmetrical approach to causality in biology', Philosophia Scientiae 16 (3), 177-195.