Lu, Hui-Chuan. “Acquisition of L3 Spanish Combinations: Development in Multilingual Contexts”. Porta Linguarum. An International Journal of Foreign Language Teaching and Learning, no. 38 (May 4, 2022): 159–172. Accessed February 7, 2026. https://revistaseug.ugr.es/index.php/portalin/article/view/22338.