By Pohl Nielsen C.   Robinson S.   Thierfelder K.   in World Development

ISSN:0305-750X|29|8|1307-1324

Elsevier‎(2001)‎

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By Nielsen C.P.   Thierfelder K.   Robinson S.   in Journal of Policy Modeling

ISSN:0161-8938|25|8|777-794

Elsevier‎(2003)‎

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