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Hopkins, Cameron (1 March 2008). "Special Ops Breaching". Tactical Life. Tactical Weapons Magazine. Archived from the original on 19 June 2021. Retrieved 7 December 2019.
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LaFemina, Fred (30 May 2007). "Back to Basics: Forcible Entry". FireRescue1. Archived from the original on 10 June 2016. Retrieved 11 September 2016.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
Hopkins, Cameron (1 March 2008). "Special Ops Breaching". Tactical Life. Tactical Weapons Magazine. Archived from the original on 19 June 2021. Retrieved 7 December 2019.
Pilgrim, Bob (1 January 2008). "Explosive Breaching". Tactical Life. GUNS & WEAPONS FOR LAW ENFORCEMENT MAGAZINE. Archived from the original on 28 March 2015. Retrieved 15 June 2022.
Valpolini, Paolo (19 September 2019). "Silent breaching from SAN". European Defense Review. Archived from the original on 9 April 2022. Retrieved 30 May 2022.
O'Donnell, Kent (May 2017). "Shotgun Breaching"(PDF). Tactics and Preparedness. Vol. May 2017, no. 43. Archived from the original(PDF) on 1 August 2022.