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1
by Dietze, Torsten
Published 2019
Verlag Julius Klinkhardt
Subjects: “...; Education statistics; Educational statistics; Statistical analysis; Germany-FRG; Germany-Western States...”
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2
by Mammes, Ingelore
Published 2022
Verlag Julius Klinkhardt
Subjects: “...-Westphalia; North-Rhine Westphalia; Germany; Austria...”