National Institute of Standards and Technology (NIST) Federal Building and Fire Safety, 30 Aug 2006
http://wtc.nist.gov/pubs/factsheets/faqs_8_2006.htm
" (NIST NCSTAR throughout this document refers to one of the 43 volumes that comprise NIST’s final report on the WTC Towers issued in October 2005. All sections of the report listed in this document are available at http://wtc.nist.gov.)"
