@book{384633,
	author = {ESTADOS UNIDOS, BBN Technologies},
	title = {Fixed and wearable acoustic counter-sniper systems for law enforcement},
	publisher = {BBN Technologies},
	year = {1998},
	address = {Cambridge, MA},
	note = {Resumo inserto no próprio artigo. "Presented at the SPIE International Symposium on Enabling Technologies for Law Enforcement and SecuritySensors, C3I, Information, and Training Technologies for Law Enforcement. SPIE Proceedings Vol. 3577. 3-5 November 1998". Ficheiro de 218 Kb em formato pdf (22 f.). Também disponível em: https://www.bbntechnologies.com/resources/pdf/sniper_spie98.pdf.Acedido em: 25 de Fevereiro de 2008.}
}