Ali, L. H., & Daniloff, R. E. (1972). A contrastive cinefluorographic investigation of the articulation of emphatic-non-emphatic cognate consonants. Studia Linguistica, 26, 81-105.
http://dx.doi.org/10.1111/j.1467-9582.1972.tb00589.x

has been cited by the following article:

• TITLE: Arabic Emphatics: Phonetic and Phonological Remarks

  AUTHORS: Majed Al-Solami

  KEYWORDS: Arabic Emphatics; Gutturals; Phonetics; Phonology

  JOURNAL NAME: Open Journal of Modern Linguistics, Vol.3 No.4, November 5, 2013

  ABSTRACT: Arabic has a set of complex coronals, /s/, /d/, and /t/, which are the emphatic sounds of their plain counterparts /s/, /d/, , and /t/. These emphatic sounds in Arabic are problematic both phonetically and phonologically. Phonetically, the secondary articulation of these sounds is disputed. Phonologically, they are grouped with the rest of Arabic guttural class in some studies while excluded by others. This paper touches on these arguments and argues that phonologically, these sounds are not part of the Arabic guttural class.