1. - Akyol 2021: Mustafa Akyol, The Muslims Who Inspired Spinoza, Locke, and Defoe, «New York Times», 5/4/ 2021
2. - Alkoran 1657: Mahomets Alkoran, voor Jan Rieuwertsz, boekverkooper in Dirk van Assensteegh, in ‘t Martelaarsboek, t’Amsterdam 1657.
3. - Bayle 1696-1697: Pierre Bayle, Dictionnaire historique et critique, voce «Spinoza» (1ère Ed. 1696, datée 1697), -- http://www.spinozaetnous.org/telechargements/Commentaires/Bayle/Bayle_Spinoza.pdf.
4. - Bayle 1740: Pierre Bayle, Dictionnaire historique et critique, cinquième édition, Amsterdam, Leyde, La Haye, Utrecht, 1740, 4 vols. in-folio, vol. 4, p. 253.
5. What became of the library of grand pensionary Johan de Witt (1625–1672)? With special reference to law books