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1
by Schäfer, Erich
Published 2017
Springer Berlin Heidelberg
Subjects: “...Educational Psychology...”
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2
by Kühl, Wolfgang, Schäfer, Erich
Published 2019
Springer Fachmedien Wiesbaden
Subjects: “...Education—Psychology...”
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3
by Schäfer, Erich, Ebersbach, Antje
Published 2021
Springer Berlin Heidelberg
Subjects: “...Educational Psychology...”