@dataset{harmon_2020_3762808, author = {Harmon, Brendan}, title = {Natural Earth Dataset for GRASS GIS}, month = apr, year = 2020, publisher = {Zenodo}, version = {1.1.0}, doi = {10.5281/zenodo.3762808}, url = {https://doi.org/10.5281/zenodo.3762808} }