Nathaniel K. Newlands and David Stephens: "Increasing Confidence in Agricultural Crop Forecasts and Climate Adaptation Decisions with Causality Analysis", Mar 2015. 

Reza Hosseini, Nathaniel K. Newlands, Charmaine B. Dean, and Akimichi Takemura: "Statistical modeling of soil moisture, integrating satellite remote-sensing (SAR) and ground-based data", Jan 2015.