https://en.wikipedia.org/wiki/Akashi_pedestrian_bridge_accident
https://doi.org/10.1061/(ASCE)0733-947X(2005)131:8(575)
https://ci.nii.ac.jp/naid/40003715651
http://edition.cnn.com/2001/WORLD/asiapcf/east/07/21/japan.stampede/
https://www.japantimes.co.jp/news/2001/09/25/national/fireworks-tragedy-remembered/
https://www.bangkokpost.com/world/406271/ex-police-officer-acquitted-over-japan-stampede-in-2001