Cooke, Roger (1993). "Uniqueness of trigonometric series and descriptive set theory, 1870–1985". Archive for History of Exact Sciences. 45 (4): 281–334. doi:10.1007/BF01886630. S2CID122744778.{{cite journal}}: CS1 maint: postscript (link)
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Cooke, Roger (1993). "Uniqueness of trigonometric series and descriptive set theory, 1870–1985". Archive for History of Exact Sciences. 45 (4): 281–334. doi:10.1007/BF01886630. S2CID122744778.{{cite journal}}: CS1 maint: postscript (link)