Gil-López, V., S. González-Víllora, and D. Hortigüela-Alcalá. “Learning Foreign Languages through Content and Language Integrated Learning in Physical Education: A Systematic Review”. Porta Linguarum. An International Journal of Foreign Language Teaching and Learning, no. 35, Jan. 2021, pp. 165-82, doi:10.30827/portalin.vi35.15785.