TY  - RPRT
TI  - Deep mantle structure and the postperovskite phase transition.
AU  - D Helmberger
AU  - T Lay
AU  - S Ni
AU  - M Gurnis
PY  - 2005
DO  - 10.1073/pnas.0502504102
UR  - https://pubmed.ncbi.nlm.nih.gov/16217029/
ID  - 16217029
ER  -