@article{BASS_2013_38_1_a2,
     author = {T. M. Atanackovi\'c and B. Stankovi\'c},
     title = {Linear fractional differential equation with  variable coefficients {I}},
     journal = {Bulletin de l'Acad\'emie serbe des sciences. Classe des sciences math\'ematiques et naturelles},
     pages = {27 - 42},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/BASS_2013_38_1_a2/}
}