@article{AIHPB_2003__39_6_919_0,
     author = {Budhiraja, A.},
     title = {Asymptotic stability, ergodicity and other asymptotic properties of the nonlinear filter},
     journal = {Annales de l'I.H.P. Probabilit\'es et statistiques},
     pages = {919--941},
     publisher = {Elsevier},
     volume = {39},
     number = {6},
     year = {2003},
     doi = {10.1016/S0246-0203(03)00022-0},
     mrnumber = {2010391},
     zbl = {02003841},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/S0246-0203(03)00022-0/}
}