Alekseev, A. and Mikhailenko, B. (1980) “The solution of dynamic problems of elastic wave propagation in inhomogeneous media by a combination of partial separation of variables and finite-difference methods”, Journal of Geophysics, 48(1), pp. 161-172. Available at: https://journal.geophysicsjournal.com/JofG/article/view/79 (Accessed: 18September2025).