Marquina Zarauza, Montserrat. 2017. “A Phonetic-Acoustic Study of Inter- and Intra-Speaker Variation in Catalan-Spanish Bilingual Speakers”. Language and Law Linguagem E Direito 4 (1). Porto, Portugal:210-12. http://84.247.136.72/ojsletrasX/index.php/LLLD/article/view/2877.