@article{CRMATH_2005__340_12_873_0,
     author = {Auroux, Didier and Blum, Jacques},
     title = {Back and forth nudging algorithm for data assimilation problems},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {873--878},
     publisher = {Elsevier},
     volume = {340},
     number = {12},
     year = {2005},
     doi = {10.1016/j.crma.2005.05.006},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2005.05.006/}
}