@ARTICLE{AUROUX-09-SW,
 author = {Auroux, D.},
 title = {The back and forth nudging algorithm applied to a shallow water model, comparison and hybridization with the {4D-VAR}},
 journal = {Int. J. Numer. Methods Fluids},
 year = {2009},
 volume = {61},
 number = {8},
 pages = {911--929},
}