@Article{npg-14-59-2007,
AUTHOR = {Gillijns, S. and De Moor, B.},
TITLE = {Model error estimation in ensemble data assimilation},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {14},
YEAR = {2007},
NUMBER = {1},
PAGES = {59--71},
URL = {http://www.nonlin-processes-geophys.net/14/59/2007/},
ISSN = {1023-5809}
}