1. Angelopoulos, Nikolaos. 2021. Nominalization of clauses: The clausal prolepsis strategy. Handout of a talk at NELS 52, Rutgers University.
2. Barbiers, Sjef et al. 2006. Dynamische Syntactische Atlas van de Nederlandse Dialecten (DynaSAND). Meertens Institute. https://www.meertens.knaw.nl/sand/.
3. Barbiers, Sjef, Johan van der Auwera, Hans Bennis, Eefje Boef, Gunther De Vogelaer, and Margreet van der Ham Syntactische atlas van de Nederlandse dialecten. Deel II. Amsterdam: Amsterdam University Press.
4. Barbiers, Sjef, Hans Bennis, Gunther De Vogelaer, Magda Devos, and Margreet van der Ham. 2005. Syntactische atlas van de Nederlandse dialecten. Deel I. Amsterdam: Amsterdam University Press.
5. Bennis, Hans. 1986. Gaps and dummies. Dordrecht: Foris Publications.