%0 Journal Article %A Zaid Laadjal %T Sharp estimates for the unique solution for a class of fractional differential equations %J Filomat %D 2023 %P 435 %V 37 %N 2 %U http://geodesic.mathdoc.fr/articles/10.2298/FIL2302435L/ %R 10.2298/FIL2302435L %G en %F 10_2298_FIL2302435L