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This article may be downloaded for personal use only. Any other use requires prior permission of Cambridge University Press. This work was published in International Review of Social History, 50, (1), 2005 p. 27-51 published by Cambridge University Press and can be found at Cambridge Journals online http://dx.doi.org/10.1017/S0020859004001841
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International Review of Social History, 50(1): 27-51