An existence theorem for a stochastic partial differential equation arising from filtering theory
Rendiconti del Seminario Matematico della Università di Padova, Tome 71 (1984), pp. 217-222 
@article{RSMUP_1984__71__217_0,
     author = {Da Prato, G. and Iannelli, M. and Tubaro, L.},
     title = {An existence theorem for a stochastic partial differential equation arising from filtering theory},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {217--222},
     year = {1984},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {71},
     mrnumber = {769437},
     zbl = {0557.60045},
     language = {en},
     url = {https://www.numdam.org/item/RSMUP_1984__71__217_0/}
}
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Da Prato, G.; Iannelli, M.; Tubaro, L. An existence theorem for a stochastic partial differential equation arising from filtering theory. Rendiconti del Seminario Matematico della Università di Padova, Tome 71 (1984), pp. 217-222. https://www.numdam.org/item/RSMUP_1984__71__217_0/

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[2] G. Da Prato - M. Iannelli, L. Tubaro, On a stochastic differential equation arising from filtering theory, Libera Università degli Studi di Trento, U.T.M. 68.

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