1. Passive Harmonic RFID System for Buried Assets Localization
2. Laboratory Calibration and Performance Evaluation of Low-Cost Capacitive and Very Low-Cost Resistive Soil Moisture Sensors
3. United States Envrionmental Protection Agency. 2013. WaterSense Notice of Intent (NOI) to Develop a Draft Specification for Soil Moisture-Based Control Technologies. https://www.epa.gov/sites/production/files/2017-01/documents/ws-products-noi-sms.pdf. United States Envrionmental Protection Agency. 2013. WaterSense Notice of Intent (NOI) to Develop a Draft Specification for Soil Moisture-Based Control Technologies. https://www.epa.gov/sites/production/files/2017-01/documents/ws-products-noi-sms.pdf.