@article{ZAA_1999__18_4_48523,
     author = {Wang, Y.H. and Zhang, B.G.},
     title = {Oscillations of certain delay integro-differential equations.},
     journal = {Zeitschrift f\"ur Analysis und ihre Anwendungen},
     pages = {1107--1116},
     publisher = {mathdoc},
     volume = {18},
     number = {4},
     year = {1999},
     zbl = {0945.34052},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZAA_1999__18_4_48523/}
}