[1] Sahr K, White D, Kimerling J. Geodesic Discrete Global Grid Systems[J]. Cartography and Geographic Information Science, 2003, 30(2):121-134.
[2] Kimerling, A.J., et al., Comparing geometrical properties of global grids[J]. Cartography and Geographic Information Science, 1999, vol. 26(4), 271-287.
[3] White, D., J. A. Kimerling, and S. W. Overton. 1992. Cartographic and Geometric Components of a Global Sampling Design for Environmental Monitoring[J]. Cartography and Geographic Information Science 19(1):5-22. doi: 10.1559/152304092783786636.
[4] Sahr, K. Location Coding on Icosahedral Aperture 3 Hexagon Discrete Global Grids. Computers[J], Environment and Urban Systems 2008, 32, 174-187.
[5] Lucas D. A Multiplication in N-Space. IEEE Transactions on Image Processing of the American Mathematical Society, 1979, 74:1-8.
[6] Peterson P. 2006. Close-Packed Uniformly Adjacent, Multi-resolution Overlapping Spatial Data Ordering[P]. United States Patent Application:2006/0265197 A1.
[7] Vince, A.; Zheng, X. Arithmetic and Fourier transform for the PYXIS multi-resolution digital Earth model[J]. Int. J. Digital Earth 2009, 2, 59-79.
[8] Zhou, J.; Ben, J.; Wang, R.; Zheng, M.; Du, L. Lattice Quad-Tree Indexing Algorithm for a Hexagonal Discrete Global Grid System. ISPRS Int. J. Geo-Inf. 2020, 9, 83.