By Jacobsen J.P.   Pearce J.W.   Rosenbloom J.L.   in Economics Letters

ISSN:0165-1765|70|1|133-138

Elsevier‎(2001)‎

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By Mancall P.C.   Rosenbloom J.L.   Weiss T.   in Explorations in Economic History

ISSN:0014-4983|39|4|390-424

Academic Press‎(2002)‎

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