language evolution, pp. 331–340 in James W. Minett and William S-Y. Wang, eds., Language Acquisition, Change and Emergence: Essays in Evolutionary Linguistics. Hong Kong: City University of Hong Kong Press. Kortlandt, Frederik Herman Henri. 1985. A parasitological view of non-constructible sets, pp. 477–483 in Ursula Pieper and Gerhard Stickel, eds., Studia linguistica diachronica et synchronica: Werner Winter sexagenario anno MCMLXXXIII gratis animis ab eius collegis, amicis discipulisque oblata. Berlin: Mouton de Gruyter. Kortlandt, Frederik Herman Henri. 1998. Syntax and semantics in the history of Chinese, Journal of Intercultural Studies, 5: 167-176 Kortlandt, Frederik Herman Henri. 2003. The origin and nature of the linguistic parasite, pp. 241–244 in Brigitte Bauer and Georges-Jean Pinault, eds., Language in Time and Space: A Festschrift for Werner Winter on the Occasion of his 80th Birthday. Berlin: Mouton de Gruyter Salverda, Reinier. 1998. Is language a virus? Reflections on the use of biological metaphors in the study of language, pp. 191–209 in Mark Janse and An Verlinden, eds., Productivity and Creativity. Studies in General and Descriptive Linguistics in Honor of E.M. Uhlenbeck. Berlin: Mouton de Gruyter. Salverda, Reinier. 2003. Letter to the Editor, New Scientist (1 February 2003), 2380: 25. Wiedenhof, Jeroen Maarten. 1996. Nexus and the birth of syntax, Acta Linguistica Hafniensia, 28: 139-150 Theories of language