TY  - GEN
AU  - Andersson, E.
AU  - Courtier, P.
AU  - Vasiljevic
AU  - Viterbo, P.
TI  - The ECMWF implementation of three dimensional variational assimilation (3D-Var)
T2  - aECMWF Technical Memorandum
VL  - 243
PY  - 1977///
CY  - Reading
PB  - ECMWF
KW  - PREVISÃO NUMÉRICA
KW  - IM
ER  -