@article{GMJ_2000__7_2_48734,
     author = {Grammatikopoulos, M.K. and Koplatadze, R.},
     title = {th order neutral differential equations with properties  and .},
     journal = {Georgian mathematical journal},
     pages = {2887--298},
     year = {2000},
     volume = {7},
     number = {2},
     zbl = {0961.34060},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2000__7_2_48734/}
}