Settimi A, Sciacca U, Bianchi C. Scientific review on the Complex Eikonal, and research perspectives for the Ionospheric Ray-tracing and Absorption. Quad. Geofis. [Internet]. 2013 Jan. 1 [cited 2026 Oct. 21];112. Available from: https://collane-editoriali.ingv.it/index.php/qdg/article/view/91