2022 Pérez Castillejo, S. A usage-based analysis of the variable production of /k/ and /d/ as interdental fricatives. In Manuel Díaz-Campos (Ed.), The Routledge Handbook of Variationist Approaches to Spanish (pp. 66-79). Abingdon, UK: Routledge.
2021 Pérez Castillejo, S. Prior processing, foreign language classroom anxiety, and L2 fluency. International Review of Applied Linguistics in Language Teaching (IRAL).
2021 Pérez Castillejo, S. Automatic speech recognition: Can you understand me? In Tita Beaven & Fernando Rosell-Aguilar (Eds.), Innovative Language Pedagogy Report (pp. 121—126). Voillans, France: Research-publishing.net.
2020 De la Fuente Iglesias, M. & Pérez Castillejo, S. L1 Phonetic permeability and phonetic path towards a potential merger: The case of Galician mid vowels in bilingual production. Linguistic Approaches to Bilingualism.
2020 De la Fuente Iglesias, M. & Pérez Castillejo, S. Spanish mid vowels as sociolinguistic variables in Galicia. Spanish in Context, 17(3), 464–487.
2020 De la Fuente Iglesias, M. & Pérez Castillejo, S. Phonetic interactions in the bilingual production of Galician and Spanish /e/ and /o/. International Journal of Bilingualism, 24(2), 305–318.
2019 Pérez Castillejo, S. The role of foreign language anxiety on L2 utterance fluency during a final exam. Language Testing, 36(3), 327-345.
2019 Pérez Castillejo, S. Will my students speak more? Action research on cellphones in the classroom. The Language Educator, 6(2), 38-41.
2018 Pérez Castillejo, S. Variación estilística en la entonación del español de Galicia. International Journal of the Linguistic Association of the Southwest (IJLASSO), 33(2). 91-130.
2017 Pérez Castillejo, S. Menor uso pese a mayor estatus: discursos sobre el valor de la lengua en Galicia. Studies in Spanish and Lusophone Linguistics, 10(1), 67–117.
2021 Pérez Castillejo, S. Prior processing, foreign language classroom anxiety, and L2 fluency. International Review of Applied Linguistics in Language Teaching (IRAL).
2021 Pérez Castillejo, S. Automatic speech recognition: Can you understand me? In Tita Beaven & Fernando Rosell-Aguilar (Eds.), Innovative Language Pedagogy Report (pp. 121—126). Voillans, France: Research-publishing.net.
2020 De la Fuente Iglesias, M. & Pérez Castillejo, S. L1 Phonetic permeability and phonetic path towards a potential merger: The case of Galician mid vowels in bilingual production. Linguistic Approaches to Bilingualism.
2020 De la Fuente Iglesias, M. & Pérez Castillejo, S. Spanish mid vowels as sociolinguistic variables in Galicia. Spanish in Context, 17(3), 464–487.
2020 De la Fuente Iglesias, M. & Pérez Castillejo, S. Phonetic interactions in the bilingual production of Galician and Spanish /e/ and /o/. International Journal of Bilingualism, 24(2), 305–318.
2019 Pérez Castillejo, S. The role of foreign language anxiety on L2 utterance fluency during a final exam. Language Testing, 36(3), 327-345.
2019 Pérez Castillejo, S. Will my students speak more? Action research on cellphones in the classroom. The Language Educator, 6(2), 38-41.
2018 Pérez Castillejo, S. Variación estilística en la entonación del español de Galicia. International Journal of the Linguistic Association of the Southwest (IJLASSO), 33(2). 91-130.
2017 Pérez Castillejo, S. Menor uso pese a mayor estatus: discursos sobre el valor de la lengua en Galicia. Studies in Spanish and Lusophone Linguistics, 10(1), 67–117.