@incollection{Tanikawa11, author = {Akio Tanikawa}, title = {New Smoothers for Discrete-time Linear Stochastic Systems with Unknown Disturbances}, booktitle = {Discrete Time Systems}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Mario Alberto Jordán}, chapter = {4}, doi = {10.5772/15256}, url = {https://doi.org/10.5772/15256} }