By Link P.   Tol Richard   in Portuguese Economic Journal

ISSN:1617-982X|3|2|99-114

Springer Publishing Company ‎(2004)‎

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By Schneidewind A.   Link P.   Etzdorf D.   Stockert O.   Loewenhaupt M.   in Neutron News

ISSN:1044-8632|18|4|9-13

Taylor & Francis Ltd‎(2007)‎

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