Robert M. Gray, John C. Kieffer. Mutual information rate, distortion, and quantization in metric spaces. IEEE Transactions on Information Theory, 26(4):412-422, 1980. [doi]
@article{GrayK80,
title = {Mutual information rate, distortion, and quantization in metric spaces},
author = {Robert M. Gray and John C. Kieffer},
year = {1980},
doi = {10.1109/TIT.1980.1056222},
url = {http://doi.ieeecomputersociety.org/10.1109/TIT.1980.1056222},
researchr = {https://researchr.org/publication/GrayK80},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Information Theory},
volume = {26},
number = {4},
pages = {412-422},
}