Sources list for EPHESUS AND SOIL EROSION:

Crosson, Pierre, Will erosion threaten agricultural productivity? (includes related article on variety of soil erosion estimates)., Vol. 39, Environment, October 1, 1997.
Soil Erosion

Albrecht, W. A. Health Depends On Soil. From The Land, edited by Pittman, Nancy
Soil Erosion

Ceballos, Antonio, Artemi Cerda and Susanne Schnabel. (2002). Runoff Production and Erosion Processes on a Dehesa in Western Spain. The Geographical Review, 92(3):333.
Hydraulic Conductivity

Frese, K. (2003). Hurricane Isabel Eats Away At Marine Laboratory Shoreline. Retrieved May. 10, 2005, from the Center for Environmental Science, University of Maryland Website: http://www.umces.edu/Cambridge_erosion
The Ecosystem

Mechanic, D. 1996. Changing Medical Organization and the Erosion of Trust. Milbank Quarterly 74(2):171-89.
Medical Profession and Policy-Making