1. Abels, Klaus, and Ad Neeleman. 1999. Universal 20 without the LCA. In Merging Features: Computation, Interpretation, and Acquisition, ed. José M. Brucart, Anna Gavarró, and Jaume Solà, 60–79. Oxford: Oxford University Press.
2. Abraham, Werner. 1999. ‘Jespersen’s Cycle’: The evidence from Germanic. In Interdigitations: Essays for Irmengard Rauch, ed. G. F. Carr, W. Harbert, and L. Zhang, 63–70. New York: Peter Lang.
3. Autonomous and non-autonomous components of ‘grammatic(al)ization’: Economy criteria in the emergence of German negation.;Sprachtypologie und Universalienforschung,2003
4. Context-sensitive Spell-out.;Natural Language and Linguistic Theory,2003