Martínez-Adrián, María. “The Use of Previously Known Languages and Target Language (English) During Task-Based Interaction: A Pseudolongitudinal Study of Primary-School CLIL Learners”. EuroAmerican Journal of Applied Linguistics and Languages, vol. 7, no. 1, Feb. 2020, pp. 59-77, doi:10.21283/2376905X.11.191.