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