BibTex format
@article{HALLIWELL:1987:10.1103/PhysRevD.36.3626,
author = {HALLIWELL, JJ},
doi = {10.1103/PhysRevD.36.3626},
journal = {PHYSICAL REVIEW D},
pages = {3626--3640},
title = {CORRELATIONS IN THE WAVE-FUNCTION OF THE UNIVERSE},
url = {http://dx.doi.org/10.1103/PhysRevD.36.3626},
volume = {36},
year = {1987}
}