By Gausden Robert   Whitfield Ian Alan   in Applied Economics

ISSN:1466-4283|32|10|1299-1310

Routledge Ltd‎(2000)‎

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By Coates Graham   Duffy Alex   Whitfield Ian   Hills William   in Journal of Engineering Design

ISSN:1466-1837|15|5|433-446

Taylor & Francis Ltd‎(2004)‎

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