@article{10_4153_CMB_1996_035_9,
     author = {Graef, J. R.},
     title = {Oscillation and {Global} {Attractivity} in a {Periodic} {Delay} {Equation}},
     journal = {Canadian mathematical bulletin},
     pages = {275--283},
     year = {1996},
     volume = {39},
     number = {3},
     doi = {10.4153/CMB-1996-035-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1996-035-9/}
}