@incollection{Das17, author = {Robert N.K. Loh and Manohar K. Das}, title = {Nonlinear Unknown‐Input Observer‐Based Systems for Secure Communication}, booktitle = {Underwater Acoustics}, publisher = {IntechOpen}, address = {Rijeka}, year = {2017}, editor = {Andrzej Zak}, chapter = {3}, doi = {10.5772/intechopen.69239}, url = {https://doi.org/10.5772/intechopen.69239} }