1. A History of Luminescence: From the Earliest Times Until 1900;Harvey,1957
2. De Anima: (On the Soul) by Aristotle;Shiffman,2011
3. Naturalis Historia (The Natural History) by Pliny the Elder;Bostock,1893
4. Alghieri, D. The Divine Comedy – Inferno Vol. 1: Canto XXVI, line 29.
5. De raris et admirandis Herbis,quae sive quod noctu lucenat, sive alias ob causas LUNARIAE nominantur, Commentariolus: & obiter de aliis etiam rebus quae tenebris lucent. Tiguri (Zurich);Gesner,1555