@article{10_4153_CJM_1994_013_9,
     author = {Erbe, L. H. and Kong, Qingkai},
     title = {Oscillation and {Nonoscillation} {Properties} of {Neutral} {Differential} {Equations}},
     journal = {Canadian journal of mathematics},
     pages = {284--297},
     year = {1994},
     volume = {46},
     number = {2},
     doi = {10.4153/CJM-1994-013-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-013-9/}
}