Donald C. Helm

Inverse procedure for calibrating parameters that control land subsidence caused by subsurface fluid withdrawal: 1. Methods

Yi Liu, Yi Liu, Donald C. Helm, 2008 .

One‐dimensional simulation of aquifer system compaction near Pixley, California: 1. Constant parameters

Donald C. Helm, D. C. Helm, 1975 .

Mechanisms of Earth Fissuring Caused by Groundwater Withdrawal

Zhuping Sheng, Zhuping Sheng, Jiang Li, 2003 .

One‐dimensional simulation of aquifer system compaction near Pixley, California: 2. Stress‐Dependent Parameters

Donald C. Helm, D. C. Helm, 1976 .