«Snipe». Online Etymology Dictionary. Ανακτήθηκε στις 1 Απριλίου 2011.
firstworldwar.com
Duffy, Michael (22 Αυγούστου 2009). «Encyclopedia - Snipers». firstworldwar.com. Ανακτήθηκε στις 10 Μαΐου 2010.
foxnews.com
U.S. Army Snipers Accused of 'Baiting' Iraqi Insurgents, Fox News 25 September 2007 "sworn statements and testimony in the cases of two other accused Ranger snipers indicate that the Army has a classified program that encourages snipers to "bait" potential targets and then kill whoever takes the bait", "The transcript of a court hearing for two of the three accused snipers makes several references to the existence of a classified "baiting" program"