Jackson, James D., Donald C. Helm, y John C. Brumley. 2004. «The Role of Poroviscosity in Evaluating Land Subsidence Due to Groundwater Extraction from Sedimentary Basin Sequences». Geofísica Internacional 43 (4):689-95. https://doi.org/10.22201/igeof.00167169p.2004.43.4.868.