@Article{npg-15-305-2008,
AUTHOR = {Auroux, D. and Blum, J.},
TITLE = {A nudging-based data assimilation method: the Back and Forth Nudging (BFN) algorithm},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {15},
YEAR = {2008},
NUMBER = {2},
PAGES = {305--319},
URL = {http://www.nonlin-processes-geophys.net/15/305/2008/},
ISSN = {1023-5809}
}