1. Goodden, R., Kevany, M., Li, M., Rous, J., & Kahmees, H. (2000). New York City GIS Utility concept and plan. PlanGraphics, 28 February 2000.
2. Kevany, M. (2001). Office of Emergency Management (OEM) GIS needs assessment—findings and recommendations. PlanGraphics, Inc., 26 February 2001.
3. Li, M., Hammel, H., & Qian, J. (2002). New York City Emergency Management Online Locator System. PlanGraphics, Inc., 11 April 2002. The EMOLS web site is posted by New York City during times of emergency conditions at: gis.nyc.gov.