Authors: Pu, ZX Braun, SA

Citation: Zx. Pu et Sa. Braun, Evaluation of bogus vortex techniques with four-dimensional variational data assimilation, M WEATH REV, 129(8), 2001, pp. 2023-2039

Authors: Kalnay, E Park, SK Pu, ZX Gao, JD

Citation: E. Kalnay et al., Application of the quasi-inverse method to data assimilation, M WEATH REV, 128(3), 2000, pp. 864-875

Authors: Pu, ZX Kalnay, E

Citation: Zx. Pu et E. Kalnay, Targeting observations with the quasi-inverse linear and adjoint NCEP global models: Performance during FASTEX, Q J R METEO, 125(561), 1999, pp. 3329-3337