%0 Journal Article %A Derbazi, Choukri %A Hammouche, Hadda %T Existence and uniqueness of integrable solutions to fractional Langevin equations involving two fractional orders with initial value problems %J Mathematica Bohemica %D 2021 %P 363-374 %V 146 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2020.0004-19/ %R 10.21136/MB.2020.0004-19 %G en %F 10_21136_MB_2020_0004_19