@article{10_4064_cm_62_2_347_351,
     author = {{\L}. Stettner},
     title = {Invariant measures of the pair: state, approximate filtering process},
     journal = {Colloquium Mathematicum},
     pages = {347--351},
     publisher = {mathdoc},
     volume = {62},
     number = {2},
     year = {1991},
     doi = {10.4064/cm-62-2-347-351},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-62-2-347-351/}
}