1. Aber JD, Martin ME (1995) High spectral resolution remote sensing of canopy chemistry. In: Green RO (ed), Summaries of the Fifth Annual JPL Airborne Earth Science Workshop, AVIRIS Workshop, 23–26 January 1995, Pasadena, California, Jet Propulsion Laboratory Vol. 1, pp 1–4
2. Adams TM, Tang AYS, Wiegand N (1993) Spatial data models for managing subsurface data. Journal of Computation in Civil Engineering, ASCE 7(3):260–277
3. Almasri MN, Kaluarachchi JJ (2004) Implications of on-ground nitrogen loading and soil transformations on ground water quality management. Journal of the American Water Resources Association 40(1):165–186
4. Aronoff S (1989) Geographic Information Systems: A Management Perspective. WDL Publications, Ottawa
5. Baker CP, Panciera EC (1990) A geographic information system for groundwater protection planning. Journal of Soil and Water Conservation 45:246–248