@article{10_4064_am_17_2_249_258,
     author = {R. Magiera},
     title = {Estimation with delayed observations},
     journal = {Applicationes Mathematicae},
     pages = {249--258},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1980},
     doi = {10.4064/am-17-2-249-258},
     zbl = {0533.62072},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-17-2-249-258/}
}