Institution
Zentralinstitut für Jugendforschung (ZIJ) (1)
Author
Hennig, W. (1)
Date Issued1987 (1)Document Type
research report (1)
Keywordacademic achievement (1)child (1)cognitive ability (1)concentration (1)DDR (1)...view moreReviewreviewstatus unknown (1)Publication StatusUnknown (1)