BibTex format
@article{Brody:2011:10.1103/PhysRevD.84.125016,
author = {Brody, DC and Graefe, E-M},
doi = {10.1103/PhysRevD.84.125016},
journal = {PHYSICAL REVIEW D},
title = {Six-dimensional space-time from quaternionic quantum mechanics},
url = {http://dx.doi.org/10.1103/PhysRevD.84.125016},
volume = {84},
year = {2011}
}