Coveney, Seamus and Fotheringham, Stewart and Charlton, Martin and Sweeney, John (2007) A Dual-frequency GPS survey to test medium-scale DTM data quality and to generate precise DTM data for sea-level rise prediction in protected habitat areas. In: Proceedings of the Geographical Information Science Research UK Conference, 11th - 13th April 2007, NUI Maynooth, Ireland .