BibTex format
@article{Zhu:2000:10.1126/science.287.5460.2000,
author = {Zhu, XK and O'Nions, RK and Guo, YL and Reynolds, BC},
doi = {10.1126/science.287.5460.2000},
journal = {SCIENCE},
pages = {2000--2002},
title = {Secular variation of iron isotopes in North Atlantic Deep Water},
url = {http://dx.doi.org/10.1126/science.287.5460.2000},
volume = {287},
year = {2000}
}