M. C. D. . Lacy, A. J. . Gil, G. . Rodríguez-caderot, y B. . Moreno, «A Method to Estimate the Ionospheric bias by Using the New GNSS Frequencies: An Analysis of its Theoretical Accuracy in a PPP Context», Fís. tierra, vol. 20, pp. 133–150, dic. 2008, Accedido: dic. 28, 2024. Disponible en: https://revistas.ucm.es/index.php/FITE/article/view/FITE0808110133A