Previous Article Next Article Table of Contents SIAM Journal on Control and Optimization, Vol.33, No.4, 1277-1277, 1995 DOI10.1137/0333064 Export Citation Observability and Observers for Nonlinear-Systems (Vol 32, Pg 975, 1994) Gauthier JP, Kupka IA Please enable JavaScript to view the comments powered by Disqus.