BibTex format
@article{Arst:1968:10.1038/219268a0,
author = {Arst, HN},
doi = {10.1038/219268a0},
journal = {Nature},
pages = {268--270},
title = {Genetic analysis of the first steps of sulphate metabolism in Aspergillus nidulans.},
url = {http://dx.doi.org/10.1038/219268a0},
volume = {219},
year = {1968}
}