@article{Korbicz:1991,
  author  = "J. Korbicz",
  title   = "Discrete-scanning observation problem for stochastic non-linear discrete-time distributed parameter systems",
  journal = "International Journal of Systems Science",
  volume  = "Vol. 22",
  number  = "no 9",
  pages   = "1647--1662",
  year    = "1991",
}