Sumer, B., Grabitz, C., & Küntay, A. (2017). Early produced signs are iconic: Evidence
from Turkish Sign Language. In G., Gunzelmann, A., Howes, T., Tenbrink, & E., Davelaar (Eds.),
Proceedings of the 39th Annual Conference of the Cognitive Science Society (CogSci 2017)
(pp. 3273-3278). Austin, TX: Cognitive Science Society.