9/11: The Day of the Attacks - The Atlantic
World Trade Center and Pentagon attacked on Sept. 11, 2001 - Los Angeles Times
The September 11 terrorist attacks | Miller Center
20 Jahre 9/11: Der 11. September ist kein Tag wie jeder andere - Wien & NÖ-Ost | Der SONNTAG
9/11 Timeline: How the Day Unfolded - WSJ
9/11 Timeline - Videos, World Trade Center Attacks - HISTORY
9/11/01: The towers are hit - YouTube
They were at school on 9/11. Here's what happened inside the classrooms. - Chalkbeat
The Story Behind TIME's Original 9/11 Cover | Time
Photos: A look back at scenes from the 9/11 attacks - Los Angeles Times
September 11 attacks - Wikipedia
The 9/11 Decade: Witness to Apocalypse. A Collective Diary. - The New York Times
Defining images from the 9/11 attacks | Reuters.com
9/11 anniversary: Doctor saw shocking attack from plane - BBC News
September 11 attacks | History, Summary, Location, Timeline, Casualties, & Facts | Britannica
Remembering 9/11 | Atlanta History Center
Wikileaks publishes 570,000 messages capturing chaos of 9/11 | WikiLeaks | The Guardian
9/11/01: The towers are hit - YouTube
A Morning That Shook the World: The Seismology of 9/11
Sept. 11, 2001: What happened at World Trade Center, Pentagon - The Washington Post
September 11 attacks: What happened on 9/11? - BBC News
The investigations: The World Trade Center towers | ASCE
Remembering 9/11 | National Archives
