Assessment of Permian coalbed gas resources of the Karoo Basin Province, South Africa and Lesotho, 2016 - Schenk, Christopher; Brownfield, Michael; Tennyson, Marilyn E.; Klett, Timothy; Mercier, Tracey; Hawkins, Sarah; Gaswirth, Stephanie; Marra, Kristen; Finn, Thomas; Le, Phuong A.; Leathers-Miller, Heidi (Fact Sheet, 2017)