@InProceedings{Korbicz:1989,
  author      = "J. Korbicz and P. Gawłowicz",
  title       = "Location of sensors in state estimation for nonlinear discrete-time distributed systems",
  booktitle   = "System Modelling and Optimization : 14th IFIP conference",
  address     = "Leipzig, Niemcy",
  publisher   = "Leipzig, [brak wydawcy]",
  volume      = "Hft. 4",
  pages       = "96--97 [abstr.]",
  year        = "1989",
}