1. Results of Direct- Method Determination of the Gas Content of U.S. Coalbeds;Diamond,1986
2. Reservoir diagnosis of longwall gobs through drawdown tests and decline curve analyses of gob gas venthole productions;Dougherty;Int. J. Rock Mech. Min. Sci.,2010
3. Numerical modeling and prediction of abandoned mine methane recovery: field application at the Saar Coalfields, Germany;Durucan;Geol. Belg.,2004
4. Coal Fields of the Conterminous United States—National Coal Resource Assessment Updated Version: U.S. Geological Survey Open–File Report 2012–1205, One Sheet, Scale 1:5,000,000;East,2013
5. Distribution of methane enrichment zone in abandoned coal mine and methane drainage by surface vertical boreholes: a case study from China;Feng;J. Nat. Gas Sci. Eng.,2016