Z.  Saavedra, Vale, A., and Elias, A. Georgina, ?Machine learning applied to the ray tracing model of the OTH radar?, HamSCI Workshop 2025. HamSCI, Newark, NJ, 2025.

Z.  Saavedra and Elias, A. G., ?On the ray tracing block of a sky wave over-the-horizon radar simulation tool?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.

A. G.  Elias, Fagre, M., Saavedra, Z., Llanes, A., and Barbas, B. F.  de Haro, ?Sensitivity analysis of ray-tracing techniques to ionospheric electron density profiles?, HamSCI Workshop 2024. HamSCI, Cleveland, OH, 2024.