1Daniel A. Crowl, Joseph F. Louvar. Chemical Process Safety Fundamentals with Application. New Jersey: Prentice Hall, 1990.
2Pan Xuhai, Jiang Juncheng, Wang Zhirong, Fang Shiyuan. Numerical Analysis of Diffusion Process of Flammable and Toxic Gases Discharging Accident. Progress in Safety Science and Technology, Beijing: Chemical Industry Press, 2000,297- 301.