Charles H. Knapp. Synthesis of fixed and variable networks for filtering nonstationary random signals. IEEE Transactions on Information Theory, 9(4):276-280, 1963. [doi]
@article{Knapp63, title = {Synthesis of fixed and variable networks for filtering nonstationary random signals}, author = {Charles H. Knapp}, year = {1963}, doi = {10.1109/TIT.1963.1057850}, url = {http://dx.doi.org/10.1109/TIT.1963.1057850}, researchr = {https://researchr.org/publication/Knapp63}, cites = {0}, citedby = {0}, journal = {IEEE Transactions on Information Theory}, volume = {9}, number = {4}, pages = {276-280}, }