Ma, X. L., B. Li, R. Jia, W. Guo, and Y. H. Sun. “Effect of Water Permeability Reduction Index on Gas Production from Hydrate-Bearing Clayey-Silt Sediments by Depressurization”. KnE Materials Science, Vol. 4, no. 2, Oct. 2018, pp. 180-9, doi:10.18502/kms.v4i2.3051.