%0 Journal Article %A Khatri, Sony %A Prasad, Ashish Kumar %T Duality for a fractional variational formulation using $\eta $-approximated method %J Kybernetika %D 2023 %P 700-722 %V 59 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14736/kyb-2023-5-0700/ %R 10.14736/kyb-2023-5-0700 %G en %F 10_14736_kyb_2023_5_0700