Gianollo, Chiara & Guardiano, Cristina & Longobardi, Giuseppe. 2008. Three fundamental issues in parametric linguistics. In Biberauer, Theresa (ed.), The limits of syntactic variation, 109–142. Amsterdam: John Benjamins. DOI: http://doi.org/10.1075/la.132.05gia
Gianollo, Chiara & Guardiano, Cristina & Longobardi, Giuseppe. 2008. Three fundamental issues in parametric linguistics. In Biberauer, Theresa (ed.), The limits of syntactic variation, 109–142. Amsterdam: John Benjamins. DOI: http://doi.org/10.1075/la.132.05gia