01050nas 2200385 c 450 991089495520332120260218110151.0(CKB)3790000000133507(DE-599)ZDB2600923-7(OCoLC)709708395(OCoLC)711873900(DE-101)1010715550(DE-599)2600923-7(EXLCZ)99379000000013350720110324a19939999 |y |engur|||||||||||txtrdacontentcrdamediacrrdacarrierJournal of research in educationJRE ; journal of the Eastern Educational Research AssociationChester, PA1993-Online-RessourceGesehen am 22.07.15JREZeitschriftgnd-content3705,3ssgn0355DE-1019999JOURNAL9910894955203321Journal of research in education4263380UNINA