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Kanzaka, 2002. Kanzaka, Junichi (2002). «Villein Rents in Thirteenth-Century England: An Analysis of the Hundred Rolls of 1279-1280». The Economic History Review55 (4): 593-618. JSTOR3091958. doi:10.1111/1468-0289.00233.
Hoyle, 1990. Hoyle, R. W. (1990). «Tenure and the Land Market in Early Modern England: Or a Late Contribution to the Brenner Debate.». The Economic History Review43 (1): 1-20. JSTOR2596510. doi:10.2307/2596510.