Hilbe, RobertEhrsam, KristinaBleichenbacher, LukasHeinzmann, Sybille2025-03-052024-05-142405-55222405-553010.1075/sar.23004.heihttps://irf.fhnw.ch/handle/11654/50488https://doi.org/10.26041/fhnw-12020en370 - Erziehung, Schul- und BildungswesenOral proficiency gains of study abroad students before and during the COVID-19 pandemic. A matched samples analysis01A - Beitrag in wissenschaftlicher Zeitschrift127-156