buckens, f. “The Velocity of Rayleigh Waves Along a Prestressed Semi-Infinite Medium Assuming a Two-Dimensional Anisotropy”. Annals of Geophysics 11, no. 2 (November 25, 1958): 99–112. Accessed April 18, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/5743.