1. Crop evapotranspiration Guidelines for computing crop water requirements;Allen,1998
2. The ASCE standardized reference evapotranspiration equation;ASCE-EWRI,2004
3. The geohydrology of coastal dunes;Bakker,1990
4. Geohydrology of Les Dunes De Mont Saint Frieux, Boulonnais, France;Bakker,1990
5. Nutrient availability and plant species composition of rich fens in the dune complex at Dooaghtry, Co. Mayo, Ireland;Beltman,1992