, 2019, 'Regress, unity, facts, and propositions', Synthese 196 (4), 1225-1247.
, 2012, 'Multitude, tolerance and language-transcendence', Synthese 187 (3), 833-847.
, 2009, 'Bad company and neo-Fregean philosophy', Synthese 170 (3), 393-414.
, 2005, 'Fiction, indifference, and ontology', Philosophy and Phenomenological Research 71 (3), 557-579.
, 2002, 'Inconsistent languages', Philosophy and Phenomenological Research 64 (2), 251-275.
with Kolak, D. , 2002a, 'Is Hintikka's logic first-order?', Synthese 131 (3), 371-388.