%0 Journal Article %A H. K. Avad %A A. V. Glushak %T On perturbations of abstract fractional differential equations by nonlinear operators %J Contemporary Mathematics. Fundamental Directions %D 2010 %P 5-21 %V 35 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMFD_2010_35_a0/ %G ru %F CMFD_2010_35_a0