Hans S. Witsenhausen. On monotonicity of conditional expectations (Corresp.). IEEE Transactions on Information Theory, 15(4):501-502, 1969. [doi]
@article{Witsenhausen69,
title = {On monotonicity of conditional expectations (Corresp.)},
author = {Hans S. Witsenhausen},
year = {1969},
doi = {10.1109/TIT.1969.1054326},
url = {http://dx.doi.org/10.1109/TIT.1969.1054326},
researchr = {https://researchr.org/publication/Witsenhausen69},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Information Theory},
volume = {15},
number = {4},
pages = {501-502},
}