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![](./images/clear.gif) 1.- Latest enhancements in the Brazilian active control network
Springer-Verlag; Berlin - Heidelberg; DEU; Federal Republic of Germany, 2009
Observing our changing Earth; proceedings of the 2007 IAG general assembly
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![](./images/clear.gif) 2.- Searching for the optimal relationships between SIRGAS2000, South American datum of 1969 and Corrego Alegre in Brazil
Springer-Verlag; Berlin - Heidelberg; DEU; Federal Republic of Germany, 2009
Observing our changing Earth; proceedings of the 2007 IAG general assembly
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