4Langefors U, Kihlstorm B. Rock Blasting [ M ]. New York : John Wiley&Sons Inc. , 1963.
5Fourney W L, Holloway D C. Fracture control blasting [ A ]. In: Dr. Calvin, Konya J ed Proc. of 10^th Conf. on Explosion & Blasting Tech [ C ]. Orlando, Florida: [ s. n. ]. 1984 : 182 - 195.
7Langefors U, Kihlstorm B. Rock Blasting[M]. New York: John Wiley& Sons Inc., 1963.
8Foumey W L, HoUoway D C. Fracture control blasting[A]. In: Dr Calvin, Konya J ed. Proc. of 10th Cone on Explosion & Blasting Tech.[C]. Orlando, Florida: [s. n.], 1984:182-195.
