- ‘Like a sound from hell:’ Was an illegal sonic weapon used on protesters in Serbia? NPR
- ‘Like a sound from hell’: Was an illegal sonic weapon used against peaceful protesters in Serbia? The Associated Press
- Calls grow in Serbia for investigation into claims ‘sound cannon’ targeted protesters The Guardian
- Did Serbia use a similar sound cannon to Romania in 1989? DW (English)
- Despite denials, Serbian gov’t proven to have deployed sonic devices on 15 March protest European Western Balkans