Hayden, J. Michael (1973). "Continuity in the France of Henry IV and Louis XIII: French Foreign Policy, 1598-1615". Journal of Modern History. 45 (1): 22. doi:10.1086/240888. S2CID144914347.
Miller, Clarence H. (March 1994). "Thomas More's Letters to Frans van Cranevelt, including Seven Recently Discovered Autographs: Latin Text, English Translation, and Facsimiles of the Originals". Moreana. 31 (Number 117) (1): 65. doi:10.3366/more.1994.31.1.4.
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Hayden, J. Michael (1973). "Continuity in the France of Henry IV and Louis XIII: French Foreign Policy, 1598-1615". Journal of Modern History. 45 (1): 22. doi:10.1086/240888. S2CID144914347.