Ocean Observer SAR requirements and instrument characteristics. - William G. Pichel; James McGuire; John D. Cunningham; Andrew Gerber; Bryan L. Huneycutt; Benjamin Holt; David T. Sandwell (IGARSS, 2002)

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)