%0 Journal Article %A V. V. Penenko %T Variational methods of data assimilation and inverse problems for studying the atmosphere, ocean, and environment %J Sibirskij žurnal vyčislitelʹnoj matematiki %D 2009 %P 421-434 %V 12 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJVM_2009_12_4_a5/ %G ru %F SJVM_2009_12_4_a5