01097nas 2200385- 450 99620859680331620220710213020.02190-6904(DE-599)ZDB2616315-9(OCoLC)727060770(CKB)3400000000000217(CONSER)--2019207914(EXLCZ)99340000000000021720110525a20119999 --- bgerur|||||||||||txtrdacontentcrdamediacrrdacarrierZeitschrift für bildungsforschungHeidelberg :Springer,2011-1 online resourceRefereed/Peer-reviewed2190-6890 ZBFEducationResearchPeriodicalsEducationResearchfast(OCoLC)fst00902743Periodicals.fastPeriodicals.lcgftEducationResearchEducationResearch.JOURNAL996208596803316Zeitschrift für bildungsforschung2200525UNISA