2002/05 - Federal Emergency Management Agency (FEMA) and the Structural Engineering Institute of the American Society of Civil Engineers (SEI/ASCE) - World Trade Center Building Performance Study - link 1, link 2

2002/05 - Massachusetts Institute of Technology (MIT) - The Towers Lost and Beyond - link

2002/09 - John D. Osteraas - World Trade Center: Assessment of Structural and Architectural Damage
The study was conducted for Exponent Failure Analysis Associates on behalf of Swiss Re and other insurers of the WTC complex.

2002/09 - Ali Reza - Damage to the WTC Complex Due to the Collapse of Only One Tower
The study was conducted for Exponent Failure Analysis Associates on behalf of Swiss Re and other insurers of the WTC complex.

2002/10 - Weidlinger Associates Inc. (WAI), LZA Technology/Thornton-Tomasetti, ARUPFire, Hughes Associates Inc., Hillman Environmental Group, RWDI, Z-Axis Corp - World Trade Center—Structural Engineering Investigation - link
The study was performed by a group of engineering firms led by WAI and was conducted on behalf of Silverstein Properties.

2005/09 - National Institute of Standards and Technology (NIST) - Federal Building and Fire Safety Investigation of the World Trade Center Disaster - link

2006/09, 2007/04 - Purdue University, Computer Graphics and Visualization Lab - High-Fidelity Visualization of Large-Scale Simulations - link 1, link 2

2001/12 - Thomas W. Eagar, Christopher Musso - Why Did the World Trade Center Collapse? Science, Engineering, and Speculation - JOM (Vol. 53, No. 12) - full article

2002/01 - Zdenek P. Bazant, Yong Zhou - Why Did the World Trade Center Collapse?—Simple Analysis - Journal of Engineering Mechanics (Vol. 128, No. 1) - full article

2002/03 - Zdenek P. Bazant, Yong Zhou - Addendum to "Why Did the World Trade Center Collapse?—Simple Analysis" - Journal of Engineering Mechanics (Vol. 128, No. 3) - full article

2002/07 - David E. Newland, David Cebon - Could the world trade center have been modified to prevent its collapse? - Journal of Engineering Mechanics (Vol. 128, No. 7)

2002/08 - Bernard Monahan - World Trade Center Collapse—Civil Engineering Considerations - Practice Periodical On Structural Design And Construction (Vol. 7, No. 3)

2002/10 - James G. Quintiere, Marino di Marzo, Rachel Becker - A suggested cause of the fire-induced collapse of the World Trade Towers - Fire Safety Journal (Vol. 37, No. 7)

2003/07 - Tomasz Wierzbicki, Xiaoqing Teng - How the airplane wing cut through the exterior columns of the World Trade Center - International Journal of Impact Engineering (Vol. 28, No. 6)

2003/10 - Asif S. Usmani, Yun Chi Chung, Jose L. Torero - How did the WTC towers collapse? A new theory - Fire Safety Journal (Vol. 38, No. 6) - full article

2005/01 - Yukihiro Omika, Eiji Fukuzawa, Norihide Koshika, Hiroshi Morikawa, Ryusuke Fukuda - Structural Responses of World Trade Center under Aircraft Attacks - Journal of Structural Engineering (Vol. 131, No. 1)

2005/01 - Howard R. Baum, Ronald G. Rehm - A simple model of the World Trade Center fireball dynamics - Proceedings of the Combustion Institute (Vol. 30, No. 2) - full article

2005/06 - Asif S. Usmani - Stability of the World Trade Center Twin Towers Structural Frame in Multiple Floor Fires - Journal of Engineering Mechanics (Vol. 131, No. 6)

2005/07 - Jeremy Chang, Andrew H. Buchanan, Peter J. Moss - Effect of insulation on the fire behaviour of steel floor trusses - Fire and Materials (Vol. 29, No. 4)

2005/10 - Mohammed R. Karim, Michelle S. Hoo Fatt - Impact of the Boeing 767 Aircraft into the World Trade Center - Journal of Engineering Mechanics (Vol. 131, No. 10)

2006/09 - Genady P. Cherepanov - Mechanics of the WTC collapse - International Journal of Fracture (Vol. 141, No. 1-2)

2007/03 - Zdenek P. Bazant, Mathieu Verdure - Mechanics of Progressive Collapse: Learning from World Trade Center and Building Demolitions - Journal of Engineering Mechanics (Vol. 133, No. 3) - full article

2007/11 - Ming Wang, Peter Chang, James Quintiere, Andre Marshall - Scale Modeling of the 96th Floor of World Trade Center Tower 1 - Journal of Performance of Constructed Facilities (Vol. 21, No. 6)

2008/01 - Ayhan Irfanoglu, Christoph M. Hoffmann - An Engineering Perspective of the Collapse of WTC-1 - Journal of Performance of Constructed Facilities (Vol. 22, No. 1) - full article

2008/03 - Keith A. Seffen - Progressive Collapse of the World Trade Centre: a Simple Analysis - Journal of Engineering Mechanics (Vol. 134, No. 2) - full article

2008/07 - Genady P. Cherepanov - Collapse of towers as applied to September 11 events - Fizyko-Khimichna Mekhanika Materialiv (Materials Science) (Vol. 44, No. 4)

2008/10 - Zdenek P. Bazant, Jia-Liang Le, Frank R. Greening, David B. Benson - What Did and Did not Cause Collapse of WTC Twin Towers in New York - Journal of Engineering Mechanics (Vol. 134, No. 10) - full article

2005/03 - Genady P. Cherepanov - September 11 And Fracture Mechanics - A Retrospective - International Journal of Fracture (Vol. 132, No. 2)

2007/01 - Genady P. Cherepanov, Ivan E. Esparragoza - Progressive Collapse of Towers: The Resistance Effect - International Journal of Fracture (Vol. 143, No. 2)

2002/11 - Lu Xinzheng, Jiang Jianjing - Simulation for the Collapse of WTC after Aeroplane Impact - Proceedings of the International Conference on Protection of Structures Against Hazard, 14 − 15 November 2002, Singapore - full paper

2003/05 - Venkatash K. R. Kodur - Role of fire resistance issues in the collapse of the Twin Towers - Proceedings of the CIB-CTBUH International Conference on Tall Buildings, 8 - 10 May 2003, Kuala Lumpur - full paper

2003/11 - Abolhassan Astaneh-Asl - World Trade Center Collapse, Field Investigation and Analysis - Proceedings of the Ninth Arab Structural Engineering Conference, 29 November – 1 December 2003, Abu Dhabi - full paper

2001/10 - Steven Ashley - When the Twin Towers Fell - Scientific American - full article

2001/10 - Zdenek P. Bazant, Yong Zhou - Why Did the World Trade Center Collapse? - Society for Industrial and Applied Mathematics News (Vol. 34, No. 8) - full article

2002/01 - Henry Petroski - The Fall of Skyscrapers - American Scientist (Vol. 90, No. 1) - full article

2006/08 - Brent Blanchard and other Protec employees - A Critical Analysis of the Collapse of WTC Towers 1, 2 & 7 From a Conventional Explosives and Demolitions Industry Viewpoint - full article

2006/09 - Debunking911 - Firefighter’ s Interviews - Sounds of Explosives or Explosive Sounds in the Towers - Journal of Debunking 9/11 Conspiracy Theories (Vol. 1, No. 2) - full article

2006/10 - Mark Roberts - World Trade Center Building 7 and the Lies of the 9/11 “Truth Movement” - full article

2007/05 - Mike King - Good Science and 9-11 Demolition Theories - full article

2008/05 - Ryan Mackey - On Debunking 9/11 Debunking, Examining Dr. David Ray Griffin’s Latest Criticism of the NIST World Trade Center Investigation - full article