Viol, Claus-Ulrich, and Simon Klasen. “U-Curve, Squiggly Lines or Nothing at All? Culture Shock and the Erasmus Experience”. Frontiers: The Interdisciplinary Journal of Study Abroad 33, no. 3 (December 20, 2021): 1–28. Accessed August 12, 2022. https://frontiersjournal.org/index.php/Frontiers/article/view/607.