@article{MHS14,
author = {Ali Mahdavi-Amiri and Erika Harrison and Faramarz Samavati},
title = {Hexagonal Connectivity Maps for Digital Earth},
journal = {International Journal of Digital Earth},
publisher = {Taylor & Francis},
month = {Jun},
year = {2014},
doi = {10.1080/17538947.2014.927597},
url = {http://dx.doi.org/10.1080/17538947.2014.927597}
}