TY  - RPRT
TI  - Suboptimal state estimation for continuous-time nonlinear systems from discrete noisy measurements.
AU  - Athans, M.
AU  - Bertolini, A.
AU  - Wishner, R. P.
PY  - 1968
UR  - https://ntrs.nasa.gov/citations/19680055553
ID  - 19680055553
ER  -