H. P. Kramer. On best approximation of random processes et al. (Corresp.). IEEE Transactions on Information Theory, 6(1):52-53, 1960. [doi]
@article{Kramer60, title = {On best approximation of random processes et al. (Corresp.)}, author = {H. P. Kramer}, year = {1960}, doi = {10.1109/TIT.1960.1057555}, url = {http://dx.doi.org/10.1109/TIT.1960.1057555}, researchr = {https://researchr.org/publication/Kramer60}, cites = {0}, citedby = {0}, journal = {IEEE Transactions on Information Theory}, volume = {6}, number = {1}, pages = {52-53}, }