@article{IJAMCS_2009_19_1_a3,
     author = {Calzolari, A. and Florchinger, P. and Nappo, G.},
     title = {Nonlinear filtering for {Markov} systems with delayed observations},
     journal = {International Journal of Applied Mathematics and Computer Science},
     pages = {49--57},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IJAMCS_2009_19_1_a3/}
}