TY  - RPRT
TI  - An assessment of African test sites in the context of a global network of quality-assured reference standards
AU  - G. Chander
AU  - X. Xiong
AU  - A. Angal
AU  - T. Choi
PY  - 2009
DO  - 10.1109/igarss.2009.5417687
UR  - https://pubs.usgs.gov/publication/70035400
ID  - 70035400
ER  -