^ 2.02.12.2Charino, Nicholas J; Stane, Monics A. et al. Passive Fire Protection(PDF). Federal Building and Fir Safety Investigation of the World Trade Center Disaster. 2005 location = USA [2012-12-08]. (原始内容存档(PDF)于2012-11-07).引文使用过时参数coauthors (帮助); 请检查|date=中的日期值 (帮助)