To cite zoom in publications use:
Barbu CM (2014). zoom: A spatial data visualization tool. (Version 2.0.6), https://github.com/cbarbu/R-package-zoom.
Corresponding BibTeX entry:
@Manual{, title = {zoom: A spatial data visualization tool}, author = {Corentin M Barbu}, year = {2014}, note = {(Version 2.0.6)}, url = {https://github.com/cbarbu/R-package-zoom}, }