Niu, FenglinKelly, CindiHuang, Jianping2013-01-302014-01-312012Niu, Fenglin, Kelly, Cindi and Huang, Jianping. "Constraints on rigid zones and other distinct layers at the top of the outer core using CMB underside reflected PKKP waves." <i>Earthquake Science,</i> 25, (2012) Springer: 17-24. http://dx.doi.org/10.1007/s11589-012-0827-5.https://hdl.handle.net/1911/69876engConstraints on rigid zones and other distinct layers at the top of the outer core using CMB underside reflected PKKP wavesJournal articlehttp://dx.doi.org/10.1007/s11589-012-0827-5