Naturhistoriske forening i Kjøbenhavn.; Kjøbenhavn, Naturhistoriske forening i (1890). Videnskabelige meddelelser fra den Naturhistoriske forening i Kjöbenhavn. Kjöbenhavn :: Selskabets Bestyrelse,. s. 222–225. «The "ohm," as represented by the original standard coil, is approximately 109 C.G.S. units of resistance: the "volt" is approximately 108 C.G.S. units of electromotive force: and the "farad" is approximately 1/109 of the C.G.S. unit of capacity»
Anon. (24.09.1881). «The Electrical Congress». The Electrician (på engelsk). s. 297. Besøkt 26. januar 2021. «The name farad will be given to the capacity defined by the condition that a coulomb in a farad gives a volt»