@article{ISU_2013_13_3_a1,
     author = {M. Sh. Burlutskaya},
     title = {Jordan--Dirichlet theorem for functional differential operator with involution},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {9--14},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2013_13_3_a1/}
}