The National Polar-orbiting Operational Environmental Satellite System future US operational Earth observation system. - John D. Cunningham; Frederick L. Ricker; Craig S. Nelson (IGARSS, 2003)

The National Polar-Orbiting Operational Environmental Satellite System (NPOESS): Improved Capabilities for Weather Forecasting and Environmental Monitoring. - Dan Stockton; Carl Hoffman; John Mike Haas; Craig S. Nelson (IGARSS (1), 2008)