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- catalog contributor b8486934.
- catalog created "[1957]".
- catalog date "1957".
- catalog date "[1957]".
- catalog dateCopyrighted "[1957]".
- catalog extent "142 p.".
- catalog isPartOf "Abhandlungen zur pädagogischen Psychologie ; Bd. 1".
- catalog issued "1957".
- catalog issued "[1957]".
- catalog language "ger".
- catalog publisher "Bern, H. Huber".
- catalog subject "Attention.".
- catalog subject "Mental fatigue.".
- catalog title "Konzentrationsfähigkeit und Konzentrationsschwäche.".
- catalog type "text".