1. Progress Toward Establishing a National Assessment of Water;Alley;Availability and Use: U.S. Geological Survey Circular,2013
2. Federal Interagency Panel on Climate Change and Water Data and Information 2011 Report to Congress - Strengthening the Scientific Understanding of Climate Change Impacts on Freshwater Resources of the United States 49
3. National Environmental Information Exchange Network (NEIEN) 2010 Data Exchange Design Rules and Conventions (EDRC) for the Exchange Network http://www.exchangenetwork.net/exchange-design-rules-and-conventions-edrcs/
4. National Environmental Information Exchange Network (NEIEN) 2012 Exchange Network REST Guidance: Optimize Your REST Services and Simplify Their Usability http://www.exchangenetwork.net/news/en-governance-releases-rest-guidance/
5. Open Geospatial Consortium (OGC) 2007 CUAHSI WaterML http://portal.opengeospatial.org/files/?artifact_id=21743