2004 Phonetic absence as syntactic prominence: Grammaticalization in isolating tonal languages. InOlga Fischer, Muriel Norde & Harry Perridon (eds.), Up and down the cline: The nature of grammaticalization, 345–362. Amsterdam: John Benjamins. 10.1075/tsl.59.18ans
2004 Grammaticalization without coevolution of form and meaning: The case of tense-aspect-modality in East and mainland Southeast Asia. InWalter Bisang, Nikolaus P. Himmelmann & Björn Wiemer (eds.), What makes grammaticalization? A look from its fringes and its components, 109–138. Berlin: Mouton de Gruyter. 10.1515/9783110197440.2.109
2003 Cognitive processes in grammaticalization. InMichael Tomasello (ed.), The new psychology of language, vol.2: Cognitive and functional approaches to language structure, 145–168. Mahwah, NJ: Lawrence Erlbaum.