BibliographyπŸ”—β„Ή

[Gervautz1990] M. Gervautz and W. Purgathofer, β€œA simple method for color quantization: Octree quantization,” Graphics Gems, 1990.
[Clark1996] Dean Clark, β€œColor Quantization using Octrees,” Dr. Dobbs Journal, January 1, 1996. http://www.ddj.com/184409805