Technical Problems of Deploying Standard Initiative of National City True Orthophoto Mapping. - Guoqing Zhou 001; Zhihao Qin; Susan Benjamin; J. Rand; Wolfgang Schickler; Sanborn Colorado (DG.O, 2003)

US National Large-scale City orthoimage standard initiative. - Guoqing Zhou 001; Changqing Song; Susan Benjamin; Wolfgang Schickler (IGARSS, 2003)

National large-scale Urban True Orthophoto Mapping and its standard initiative. - Guoqing Zhou 001; Wenhan Xie; Susan Benjamin; Robin Fegeas; John Simmers; Hap Cluff; Y. Lei; Jeanne Foust (DG.O, 2006)