Ahuja, Masuma; Lu, Denise (23 July 2014). "What Paris looks like with an echo". The Washington Post. Nash Holdings. Archived from the original on 29 July 2014. Retrieved 28 July 2014.
Ahuja, Masuma; Lu, Denise (23 July 2014). "What Paris looks like with an echo". The Washington Post. Nash Holdings. Archived from the original on 29 July 2014. Retrieved 28 July 2014.