Ridouane, Rachid, and Giuseppina Turco. "Why is gemination contrast prevalently binary? Insights from Moroccan Arabic." Radical: A journal of Phonology (2019).

Ridouane, Rachid, Giuseppina Turco, and Julien Meyer. Length Contrast and Covarying Features: Whistled Speech as a Case Study In Interspeech 2018 - 19th Annual Conference of the International Speech Communication Association. Hyperabad, India, 2018.