S. O., Eteje; O. F., Oduyebo; P. D., Oluyori. Relationship between Polynomial Geometric Surfaces Terms and Observation Points Numbers and Effect in the Accuracy of Geometric Geoid Models. International Journal of Environment, Agriculture and Biotechnology, [S. l.], v. 4, n. 4, 2019. Disponível em: https://journal-repository.com/index.php/ijeab/article/view/299.. Acesso em: 18 apr. 2025.