1
Published: [2016]
Superior document: Studies in pedagogy, andragogy, and gerontagogy ; Band 67
2
Published: 2015.
Superior document: Studien Zur Paedagogik, Andragogik und Gerontagogik / Studies in Pedagogy, Andragogy, and Gerontagogy Series ; v.67
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3
Published: 2016
Superior document: Studien zur Paedagogik, Andragogik und Gerontagogik / Studies in Pedagogy, Andragogy, and Gerontagogy
4
Published: 2023.
5
Published: 2020.