1. Multiple inner core reflections from a Novaya Zemlya explosion;Adams;Bull. Seismol. Soc. Am.,1972
2. The fine structure of the earth's core;Adams;Bull. Seismol. Soc. Am.,1964
3. Gutenberg's early PKP observations;Bolt;Nature,1962
4. The velocity of seismic waves near the earth's centre;Bolt;Bull. Seismol. Soc. Am.,1964
5. Structure of the earth's core from seismological evidence;Bolt;Eos (Trans. Am. Geophys. Union),1972