1. OSHA, “Fatality and Catastrophe Investigation Summaries,” 2015. [Online]. Available: https://www.osha.gov/pls/imis/accidentsearch.html. [Accessed: 01-Mar-2016].
2. D. Leigh, “Statistics on fatal injuries in the workplace in Great Britain 2015,” London, 2015.
3. OSHA, “Commonly Used Statistics,” 2016. [Online]. Available: https://www.osha.gov/oshstats/commonstats.html. [Accessed: 01-Mar-2016].
4. H. J. Lipscomb, A.L. Schoenfisch, W. Cameron, K.L. Kucera, D. Adams, and B. A. Silverstein, “How well are we controlling falls from height in construction? Experiences of union carpenters in Washington State, 1989-2008,” Am. J. Ind. Med., vol. 57, no. 1, pp. 69-77, Jan. 2014.
5. X. S. Dong, S.D. Choi, J.G. Borchardt, X. Wang, and J. A. Largay, “Fatal falls from roofs among U.S. construction workers, “J. Safety Res., vol. 44, pp. 17-24, Feb. 2013.