To cite the raptr package in publications, use:
Hanson JO, Rhodes JR, Possingham HP & Fuller RA raptr: Representative and Adequate Prioritization Toolkit in R. Methods in Ecology & Evolution, 9: 320--330.<doi:10.1111/2041-210X.12862>
You may also want to cite the package version. Find it with "help(package=raptr)".
Corresponding BibTeX entry:
@Article{, author = {Jeffrey O Hanson and Jonathan R Rhodes and Hugh P Possingham and Richard A Fuller}, title = {raptr: Representative and adequate prioritization toolkit in R}, journal = {Methods in Ecology and Evolution}, year = {2018}, volume = {9}, pages = {320--330}, url = {https://dx.doi.org/10.1111/2041-210X.12862}, }