1. Skin failure of roof and rib and support techniques in underground coal mines;Bauer,2000
2. Preliminary Accident Reports, Fatality Alerts and Fatal Investigation Reports;MSHA,2019
3. Rib stability: Practical considerations to optimize rib design;Smith,1992
4. Entry stabilization utilizing rib bolting procedures;Dolinar,1991
5. Techniques to increase yield pillar residual strength;Dolinar,1993