Corrigendum to "Determination of the absolute adsorption/desorption isotherms of CH4 and n-C4H10 on shale from a nano-scale perspective" [Fuel 218 (2018) 67–77]. (1st November 2018) - Liu, Yueliang; Li, Huazhou Andy; Tian, Yuanyuan; Jin, Zhehui; Deng, Hucheng