References
- BATH, M., 1954: Jordkärnan-ett aktuellt geofysiskt problem (The Earth's Core-A Modern Geophysical Problem). Föreningen for Filosoji och Specialvetenskap, Uppsala, Vol. 3 (in press).
- BULLEN, K. E., 1947: An Introduction to the Theory of Seismology. Cambridge Univ. Press, 276 pp.
- ERGIN, K., 1952: Observations on Recorded Ground Motion Due to P, PcP, S, and ScS. Bull. Seism. Soc. Am., Vol. 42, No. 3, pp. 263 —270.
- ERGIN, K., 1953: Amplitudes of PcP, PcS, ScS, and ScP in Deep-Focus Earthquakes. Bull. Seism. Soc. Am., Vol. 43, No. r, pp. 63 —83.
- GUTENBERG, 13., 1951: PKKP, P'P', and the Earth's Core. Trans. Am. Geophys. CIL, Vol. 32, No. 3, pp. 373-390.
- JEFFREYS, H., 1926: The Reflexion and Refraction of Elastic Waves. Monthl. Not. Roy. Astr. Soc., Geophys. Suppl., Vol. I, No. 7, pp. 321— 334,
- KUHN, W., and RITTMANN, A., 1941: Uber den Zustand des Erdinnern und seine Entstehung aus einem ho-mogenen Urzustand. Geol. Rundschau, Bd 32, pp. 215-256.
- MARINER, S. T., 1950: Observations on Seismic Waves Reflected at the Core Boundary of the Earth. Bull. Seism. Soc. Am., Vol. 4o, NO. 2, pp. 95-109.