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Elsevier‎(2000)‎

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By Oosterbeek H.   in Economics Letters

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Elsevier‎(1997)‎

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By Oosterbeek H.   in Economics of Education Review

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Elsevier‎(1995)‎

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By Hartog J.   Oosterbeek H.   in Economics of Education Review

ISSN:0272-7757|17|3|245-256

Elsevier‎(1998)‎

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By Kuipers E.W.   Scheper C.   Wilson J.H.   Vinkenburg I.H.   Oosterbeek H.   in Journal of Catalysis

ISSN:0021-9517|158|1|288-300

Academic Press‎(1996)‎

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