%0 Journal Article %A Mohamed I Abbas %T Investigation of Langevin equation in terms of generalized proportional fractional derivatives with respect to another function %J Filomat %D 2021 %P 4073 %V 35 %N 12 %U http://geodesic.mathdoc.fr/articles/10.2298/FIL2112073A/ %R 10.2298/FIL2112073A %G en %F 10_2298_FIL2112073A