^Reported by Brandt in Acta Literaria et Scientiarum Sveciae (Uppsala) and recalled by him in his Presidential address, "Tal on Färg Cobalter", to the Royal Swedish Academy of Sciences (Stockholm, 1860). Gusenius, Edwin M. (1967). "Beginnings of Greatness in Swedish Chemistry: Georg Brandt (1694–1768)". Transactions of the Kansas Academy of Science. 70: 413–425. doi:10.2307/3627593. JSTOR3627593.
^Ferreiro, Larrie (2011). Measure of the Earth: the Enlightenment Expedition that Reshaped our World. New York: Basic Books. ISBN978-0-465-01723-2.