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BildungSachunterrichtBildungswertthema EDItEUR::J Society and Social Sciences::JN Education::JNF Educational strategies and policythema EDItEUR::J Society and Social Sciences::JN Education::JNU Teaching of a specific subjectthema EDItEUR::J Society and Social Sciences::JN Education::JNL Schools and pre-schools::JNLB Primary and middle schools
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Public-domain status shown for GLOBAL. DOAB open-access record with explicit license: open access
Public-domain status shown for GLOBAL. DOAB open-access record with explicit license: open access