1. Mark C. The introduction of roof-bolting to US underground coal mines (1948–1960): a cautionary tale. In: Proceedings of the 21st international conference on ground control in mining, Morgantown; 2002. p. 150–60.
2. Hebblewhite B. 25 years of ground control developments, practices, and issues in Australia. In: Proceedings 25th international conference on ground control in mining, Morgantown; 2006. p. 111–7.
3. Mark C, Molinda GM, Dolinar DR. Analysis of roof bolt systems. In: Proceedings 21st international conference on ground control in mining, Morgantown; 2001. p. 218–25.
4. Design of optimum roof support systems in South African collieries using a probabilistic design approach;Canbulat;J South Afric Inst Min Metall,2009
5. Esterhuizen GS, Bajpayee TS, Ellenberger JL, Murphy MM. Practical estimation of rock properties for modeling bedded coal mine strata using the Coal Mine Roof Rating. In: 47th US rock mechanics/geomechanics symposium, San Francisco; 2013. p. 1634–47.