@article{EJDE_2008__2008__a21,
     author = {Pachpatte,  Baburao G.},
     title = {Some basic theorems on difference-differential equations},
     journal = {Electronic journal of differential equations},
     year = {2008},
     volume = {2008},
     zbl = {1172.34041},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a21/}
}