1. Atmospheric Data Analysis;Daley,1991
2. Analysis methods for numerical weather prediction;Lorenc;Q. J. R. Meteorol. Soc.,1986
3. The ECMWF implementation of three-dimensional variational assimilation (3D-VAR). Part 1: formulation;Courtier;Q. J. R. Meteorol. Soc.,1998
4. Variational assimilation of meteorological observations, with the direct and adjoint shallow water equations;Courtier;Tellus A,1990
5. P. Del Moral, G. Rigal, G. Salut, Filtrage non-linéaire non-gaussien appliqué au recalage de plates-formes inertielles, Rapport LAAS No.92207, 1991.