van Etten J (2017). “R Package gdistance: Distances and Routes on Geographical Grids.” Journal of Statistical Software, 76(13), 1-21. doi:10.18637/jss.v076.i13.
Corresponding BibTeX entry:
@Article{,
author = {Jacob {van Etten}},
title = {R Package gdistance: Distances and Routes on Geographical
Grids},
doi = {10.18637/jss.v076.i13},
year = {2017},
month = {feb},
publisher = {Foundation for Open Access Statistics},
volume = {76},
number = {13},
pages = {1-21},
journal = {Journal of Statistical Software},
}