@article{Kimerling1999,
  title   = {Comparing geometrical properties of global grids},
  volume  = {26},
  url     = {http://www.tandfonline.com/doi/abs/10.1559/152304099782294186},
  number  = {4},
  urldate = {2016-07-11},
  journal = {Cartography and Geographic Information Science},
  author  = {Kimerling, Jon A. and Sahr, Kevin and White, Denis and Song, Lian},
  year    = {1999},
  pages   = {271--288},
  file    = {Kimerling_etal_CAGIS_1999.pdf:/home/rick/.zotero/zotero/yvv1ung8.default/zotero/storage/8SIPNAXU/Kimerling_etal_CAGIS_1999.pdf:application/pdf}
}

@article{Gregory2008,
  title    = {A comparison of intercell metrics on discrete global grid systems},
  volume   = {32},
  issn     = {01989715},
  url      = {http://linkinghub.elsevier.com/retrieve/pii/S0198971507000877},
  doi      = {10.1016/j.compenvurbsys.2007.11.003},
  language = {en},
  number   = {3},
  urldate  = {2016-07-11},
  journal  = {Computers, Environment and Urban Systems},
  author   = {Gregory, Matthew J. and Kimerling, A. Jon and White, Denis and Sahr, Kevin},
  month    = may,
  year     = {2008},
  pages    = {188--203},
  file     = {10.1.1.689.5930.pdf:/home/rick/.zotero/zotero/yvv1ung8.default/zotero/storage/ZC2M35V5/10.1.1.689.5930.pdf:application/pdf}
}