with Wang, P. , 2015, Rules as reason-giving facts: a difference-making-based account of the normativity of rules, in M. Araszkiewicz, P. Banaś, T. Gizbert-Studnicki & K. Płeszka (eds.), Problems of normativity, rules and rule-following, Dordrecht, Springer, pp. 199-213.
with Ma, W.-F. , 2014, 'Comparative syllogism and counterfactual knowledge', Synthese 191 (6), 1327-1348.
, 2008a, 'Epistemic comparative conditionals', Synthese 162 (1), 133-156.