@Article{ijgi4010320,
AUTHOR = {Mahdavi-Amiri, Ali and Samavati, Faramarz and Peterson, Perry},
TITLE = {Categorization and Conversions for Indexing Methods of Discrete Global Grid Systems},
JOURNAL = {ISPRS International Journal of Geo-Information},
VOLUME = {4},
YEAR = {2015},
NUMBER = {1},
PAGES = {320--336}
}