@article{10_4153_CMB_1990_053_4,
     author = {Gy\"ori, I.},
     title = {Oscillation {Theorems} for {Delay} {Differential} {Equations} via {Laplace} {Transforms}},
     journal = {Canadian mathematical bulletin},
     pages = {323--326},
     year = {1990},
     volume = {33},
     number = {3},
     doi = {10.4153/CMB-1990-053-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-053-4/}
}