@ARTICLE{Lendek2009StabilityCascadedFuzzy,
author = {{Zs}. Lendek and R. Babu\v{s}ka and B. {De Schutter}},
title = {Stability of Cascaded Fuzzy Systems and Observers},
journal = {{IEEE} Transactions on Fuzzy Systems},
volume = {17},
number = {3},
pages = {641--653},
year = {2009},
}