An attempt for an Amazon geoid model using Helmert gravity anomaly
Blitzkow, D.
;
Matos, A.C.O.C.de
;
Campos, I.O.
;
Ellmann, Artu
;
Vanicek, P.
;
Santos, M.C.
Observing our changing Earth : proceedings of the 2007 IAG General Assembly : Perugia, Italy, July 2-13, 2007
2009
/
p. 187-194 : ill
https://www.researchgate.net/publication/226489398_An_Attempt_for_an_Amazon_Geoid_Model_Using_Helmert_Gravity_Anomaly