... ¹

Institute of Isotope Geology and Mineral Resources, ETH-Zürich, cosmocalc@gmail.com, http://cosmocalc.googlepages.com

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.