1. Calibration of a Novel Low‐Cost Soil Water Content Sensor Based on a Ring Oscillator. Issue 2 (2nd May 2013) Authors: Qu, W.; Bogena, H.R.; Huisman, J.A.; Vereecken, H. Journal: Vadose zone journal Issue: Volume 12:Issue 2(2013) Page Start: 1 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗