Seymour, Raymond B. & Deanin Rudolph D.: ”2”, History of Polymeric Composites, s. 226. ("In 1096 Genthe showed that linseed oil absorbed oxygen very slowly initially but that oxidation proceeded with increasing speed.") VSP, 1987. Virhe: Virheellinen ISBN-tunnisteTeoksen verkkoversio Viitattu 24.01.2015. (englanniksi)
