TY  - RPRT
TI  - Seismic waves reflected from the Earth's inner core.
AU  - E R Engdahl
AU  - E A Flinn
AU  - C F Romney
PY  - 1970
DO  - 10.1038/228852a0
UR  - https://pubmed.ncbi.nlm.nih.gov/16058729/
ID  - 16058729
ER  -