@article{EP_1998_4_a2,
     author = {J. Blum and B. Luong and J. Verron},
     title = {Variational assimilation of altimeter data into a non-linear ocean model: temporal strategies},
     journal = {ESAIM. Proceedings},
     pages = {21--57},
     publisher = {mathdoc},
     volume = {4},
     year = {1998},
     doi = {10.1051/proc:1998019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc:1998019/}
}