Fougeron, C., and R. Ridouane. “On the Phonetic Implementation of Syllabic Consonants and Vowel-Less Syllables in Tashlhiyt”. Journal of Experimental Phonetics, vol. 17, Dec. 2008, pp. 139-75, https://revistes.ub.edu/index.php/experimentalphonetics/article/view/44293.