1. New results in linear filtering and prediction theory;Kalman;J. Basic Eng., Ser. D,1961
2. Conditional Markov processes;Stratonovich;Theory Prob. Appl.,1960
3. On the differential equations satisfied by conditional probability densities of Markov processes;Kushner;J. SIAM Contr., Ser. A,1964
4. Nonlinear filtering theory;Bucy;IEEE Trans. Automat. Contr.,1965
5. On stochastic processes;Ito,1961