Analysis of information sources in references of the Wikipedia article "Темплари" in Serbian language version.
Martin, Sean (2005). The Knights Templar: The History & Myths of the Legendary Military Order. New York: Thunder's Mouth Press. ISBN 978-1-56025-645-8.The Pope conferred on the Templars the right to wear a red cross on their white mantles, which symbolised their willingness to suffer martyrdom in defending the Holy Land against the infidel.
Read, Piers (2001). The Templars. New York: Da Capo Press. ISBN 978-0-306-81071-8.Pope Eugenius gave them the right to wear a scarlet cross over their hearts, so that the sign would serve triumphantly as a shield and they would never turn away in the face of the infidels': the red blood of the martyr was superimposed on the white of the chaste." (Melville, La Vie des Templiers, pp. 92.)