1. Microearthquake activity associated with underground coal-mining in Buchanan County, Virginia, USA;Bollinger;Pure Appl Geophys,1989
2. The roof behavior of a longwall tailgate under massive sandstone strata;Akinkugbe,2007
3. Su DWH, Hasenfus GJ, Stull LA. Ground control design considerations for reducing longwall-induced stress and seismicity associated with massive sandstone under deep cover. Englewood, CO: Society for Mining, Metallurgy, & Exploration; 2014. p. 9.