By Contoyannis Paul   Jones Andrew M.   Rice Nigel   in Empirical Economics

ISSN:0377-7332|29|1|49-77

Springer Publishing Company ‎(2004)‎

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By Hagan Ronald   Jones Andrew M.   Rice Nigel   in International Journal of Environmental Research and Public Health

ISSN:1660-4601|6|10|2676-2695

MDPI‎(2009)‎

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