Bolt, B. A. (1982). "The Constitution of the Core: Seismological Evidence". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences306 (1492): 11–20. doi:10.1098/rsta.1982.0062. Bibcode: 1982RSPTA.306...11B.
Bolt, B. A. (1982). "The Constitution of the Core: Seismological Evidence". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences306 (1492): 11–20. doi:10.1098/rsta.1982.0062. Bibcode: 1982RSPTA.306...11B.