TY - EJOUR T1 - Virtual Exchange to Develop Cultural, Language, and Digital Competencies AU - Machwate, Said AU - Bendaoud, Rachid AU - Henze, Jürgen AU - Berrada, Khalid AU - Burgos, Daniel PY - 2021 LA - ger PB - Humboldt-Universität zu Berlin JO - Sustainability DO - 10.3390/su13115926 ER -