For Hartshorne's appreciation of Fechner see his Aquinas to Whitehead – Seven Centuries of Metafysics of Religion. Hartshorne also comments that William James failed to do justice to the theological aspects of Fechner's work. Hartshorne saw also resemblances with the work of Fechner's contemporary Jules Lequier. See also: Hartshorne – Reese (ed.) Philosophers speak of God.
Beiser, Frederick C. (2024), "Gustav Theodor Fechner", in Zalta, Edward N.; Nodelman, Uri (eds.), The Stanford Encyclopedia of Philosophy (Summer 2024 ed.), Metaphysics Research Lab, Stanford University, retrieved 2024-09-07
Beiser, Frederick C. "Gustav Theodor Fechner". Stanford Encyclopedia of Philosophy. Retrieved 13 July 2022.
Livio, Mario (2002). The Golden Ratio: The Story of Phi, the World's Most Astonishing Number (1st ed.). New York: Broadway Books. ISBN0-7679-0815-5. OCLC49226115.