1. A DRAIN‐SPACING EQUATION THAT TAKES THE HORIZONTAL FLOW IN THE UNSATURATED ZONE ABOVE THE GROUNDWATER TABLE INTO ACCOUNT1. (15th January 2014) Authors: Yousfi, A.; Mechergui, M.; Ritzema, Henk Journal: Irrigation and drainage Issue: Volume 63:Number 3(2014:Jul.) Page Start: 373 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗