@article{CTT100659294,
  author = {F. Moynier and J.M.D. Day and Wataru Okui and Tetsuya Yokoyama and A. Bouvier and R.J. Walker and F.A. Podosek},
  title = {Planetary-scale strontium isotopic heterogeneity and the age of volatile depletion of early solar system materials.},
  journal = {Astrophys. J.},
  year = 2012,
}