Weis D., Kieffer B., Hanano D., Nobre Silva I., Barling J., Pretorius W., Maerschalk C., Mattielli N. Hf isotopic composition of USGS reference materials. Geochem. Geophys. Geosyst., 8, Q06006, doi:10.1029/2006GC001473, 2007.
![](https://dominiqueweis.pcigr.ubc.ca/wp-content/uploads/2014/12/Gcubed_thumb.jpg)
Weis D., Kieffer B., Hanano D., Nobre Silva I., Barling J., Pretorius W., Maerschalk C., Mattielli N. Hf isotopic composition of USGS reference materials. Geochem. Geophys. Geosyst., 8, Q06006, doi:10.1029/2006GC001473, 2007.