%0 Journal Article %A S. Repin %T Derivation of fully computable error bounds from a posteriori error identities %J Zapiski Nauchnykh Seminarov POMI %D 2024 %P 120-156 %V 539 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2024_539_a6/ %G en %F ZNSL_2024_539_a6