De Luca, Gabriele, and Shahanaz Parven. “ Towards a Systemic Theory of Irregular Migration: Explaining Ecuadorian Irregular Migration in Amsterdam and Madrid”. Migration Letters 19, no. 2 (March 7, 2022): 247–252. Accessed November 27, 2024. https://migrationletters.com/index.php/ml/article/view/2002.