%0 Journal Article %A H. Serrai %A B. Tellab %A Kh. Zennir %T On two-order fractional boundary value problem with generalized Riemann-Liouville derivative %J Ufa mathematical journal %D 2023 %P 135-156 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2023_15_2_a11/ %G en %F UFA_2023_15_2_a11