Braitenberg, C., and M. Zadro. “The Iterative Signal Enhancing Method for Determining Magnetotelluric Impedance”. Annals of Geophysics 39, no. 1 (November 25, 1996). Accessed April 20, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3955.