Aristodemo, V. & Geraci, C. (2017). Visible degrees in Italian Sign Language. Natural Language {&} Linguistic Theory, -(on line). doi:10.1007/s11049-017-9389-5
Abrusan, M. & Spector, B. (2011). A Semantics for Degree Questions Based on Intervals: Negative Islands and Their Obviation. Journal of Semantics, 28(1), 107-147. doi:10.1093/jos/ffq013