Manis, G., C. Homer, R. D. Ramsey, J. Lowry, T. Sajwaj and S. Graves. (2000). The development of Mapping Zones to assist in Land Cover mapping over large geographic areas: A case study of the Southwest ReGAP Project. GAP Analysis Bulletin No. 9, U.S. Geological Survey.

Manis, G., J. Lowry and R. D. Ramsey. (2001). Pre-classification: An ecologically predictive landform model. GAP Analysis Bulletin No. 10, U.S. Geological Survey.

Lowry, J., R. D. Ramsey and G. Manis. (2002). Mapping land cover over large geographic areas: Integrating GIS and remote sensing technologies. Proceedings of the 22nd Annual ESRI International User Conference. San Diego, CA July 8-12, 2002.

Lowry, J., and R. Douglas Ramsey. (2004). Land-cover mapping for the Southwest Regional Gap Analysis Project. Remote Sensing for Field Users. Jerry Dean, Editor. Proceedings from the Tenth Biennial Forest Service Remote Sensing Applications Conference, April 5-9, 2004, Salt Lake City, UT.

Lowry, J., C. Garrard and R. D. Ramsey. (2004). Land-cover mapping using StatMod: An ArcView 3.x extension for Classification Trees using SPLUS. GAP Analysis Bulletin No. 12, U.S.Geological Survey.

Falzarano, S., K. Thomas and J. Lowry. (2005). Using decision tree modeling in Gap analysis land cover mapping: preliminary results for northeastern Arizona. In The Colorado Plateau II: Biophysical, Socioeconomic and Cultural Research. C. van Riper III and D.J. Mattson (eds.). Tucson: The University of Arizona Press.

Neale, C.M.U., R.K. Vinukollu and R.D. Ramsey. (Submitted). A Hybrid Surface Energy Balance Approach For The Estimation Of Evapotranspiration In Agricultural Areas. Submitted for publication in: Proceedings of the International Conference on "Earth Observation for vegetation monitoring and water management", American Institute of Physics.

West, N.E., F. L. Dougher, G.S. Manis, R.D. Ramsey. (2005). A comprehensive ecological land classification for Utah’s West Desert. Western North American Naturalist, 65(3): pp 281-309.

White, M.A., J.D. Shaw, R.D. Ramsey. (2005). Accuracy assessment of the vegetation continuous field tree cover product using 3954 ground plots in the southwestern USA. International Journal of Remote Sensing, 26(12): pp 2699-2704.

Wright, D.L., V.P. Rasmussen, R.D. Ramsey, D.J. Baker, and J.W. Ellsworth. (2005). Canopy Reflectance Estimation of Wheat Nitrogen Content for Grain Protein Management. GIScience and Remote Sensing, 41(4) pp 287-300 .

Wright, D.L., V.P. Rasmussen, and R.D. Ramsey. (2005). Comparing the Use of Remote Sensing with Traditional Techniques to Detect Nitrogen Stress in Wheat. Geocarto International, 20(1) pp. 63-68.

Washington-Allen, R.A., N.E. West, R.D. Ramsey, and R.A. Efroymson. (2006). A Protocol for Retrospective Remote Sensing-Based Ecological Monitoring of Rangelands. Rangeland Ecol. Manage. 59:19-29.

Langs, L.A., K.A. Thomas, J.H. Lowry and K.A. Schulz. (In Press). A Gap Analysis of Land Cover for the Colorado Plateau: Implications from the Southwest Regional Gap Analysis Project. Proceedings 8th Biennial Conference of Research on the Colorado Plateau.

Lowry, J.H. Jr., R.D. Ramsey, K. Boykin, D. Bradford, P. Comer, S. Falzarano, W. Kepner, J. Kirby, L. Langs, J. Prior-Magee, G. Manis, L. O’Brien, K. Pohs, W. Rieth, T. Sajwaj, T.S. Schrader, D. Schrupp, K. Schulz, K.A. Thomas, B. Thompson, C. Velasquez, C. Wallace, E. Waller and B. Wolk. (2007) Mapping meso-scale land cover over very large geographic areas within a collaborative framework: A case study of the Southwest Regional Gap Analysis Project (SWReGAP). Remote Sensing of the Environment. Vol. 108:59-73.

Lowry, J. H., R. D. Ramsey, L. Langs-Stoner, J. Kirby and K. Schulz. (In Press). An ecological framework for evaluating map errors due to class similarity using fuzzy sets. Photogrammetric Engineering and Remote Sensing.