@Article{npg-15-645-2008,
AUTHOR = {Liu, J. and Fertig, E. J. and Li, H. and Kalnay, E. and Hunt, B. R. and Kostelich, E. J. and Szunyogh, I. and Todling, R.},
TITLE = {Comparison between Local Ensemble Transform Kalman Filter and PSAS in the NASA finite volume GCM – perfect model experiments},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {15},
YEAR = {2008},
NUMBER = {4},
PAGES = {645--659},
URL = {http://www.nonlin-processes-geophys.net/15/645/2008/},
DOI = {10.5194/npg-15-645-2008}
}