BibTex format
@article{Halliwell:1995,
author = {Halliwell, JJ and Zoupas, A},
journal = {Physical Review D},
pages = {7294--7307},
title = {Quantum State Diffusion, Density Matrix Diagonalization and Decoherent Histories: A Model},
volume = {52},
year = {1995}
}