BibTex format
@article{WARREN:1987:10.1038/330453a0,
author = {WARREN, SJ and HEWETT, PC and OSMER, PS and IRWIN, MJ},
doi = {10.1038/330453a0},
journal = {NATURE},
pages = {453--455},
title = {QUASARS OF REDSHIFT Z=4.43 AND Z=4.07 IN THE SOUTH GALACTIC POLE FIELD},
url = {http://dx.doi.org/10.1038/330453a0},
volume = {330},
year = {1987}
}