@InProceedings{active_observer_mtns2006,

author = {David A. Anisi and Xiaoming Hu},

title = {{``Observability and active observers for mobile robotic systems''}},

booktitle = {Proc. of International Symposium on the Mathematical Theory of Networks and Systems (MTNS)},

year = {2006},

address = {Kyoto, Japan},

month = {Jul.} }