Schimke, S., Verhagen, J., & Turco, G. (2012). The different role of additive and negative particles in the development of finiteness in early adult L2 German and L2 Dutch. In M. Watorek, S. Benazzo, & M. Hickmann (Eds.), Comparative perspectives on language acquisition: A tribute to Clive Perdue (pp. 73-91). Bristol: Multilingual Matters.