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Selection bias in innovation studies : a simple test
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International comparisons of work disability
Interlinguale Fehler Deutschlernender beim Erwerb des Niederländischen ; Interlingual errors of German learners when acquiring Dutch ; Prijenosna odstupanja govornika njemačkog pri...
Measurement and adjustment of non-response bias based on non-response surveys: the case of Belgium and Norway in the European Social Survey Round 3
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