@article{COCV_2002__8__873_0,
     author = {Marchuk, Guri and Shutyaev, Victor},
     title = {Solvability and numerical algorithms for a class of variational data assimilation problems},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {873--883},
     year = {2002},
     publisher = {EDP Sciences},
     volume = {8},
     doi = {10.1051/cocv:2002044},
     mrnumber = {1932977},
     zbl = {1070.65553},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/cocv:2002044/}
}