@article{DAN_1977_234_2_a12,
     author = {A. M. Nakhushev},
     title = {The {Sturm--Liouville} problem for an ordinary second-order differential equation with fractional derivatives in the lowest terms},
     journal = {Doklady Akademii Nauk},
     pages = {308--311},
     publisher = {mathdoc},
     volume = {234},
     number = {2},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_234_2_a12/}
}