@article{10_4153_S0008439519000262,
     author = {Naito, Manabu},
     title = {Oscillation {Criteria} for {Second} {Order} {Ordinary} {Differential} {Equations}},
     journal = {Canadian mathematical bulletin},
     pages = {276--286},
     year = {2020},
     volume = {63},
     number = {2},
     doi = {10.4153/S0008439519000262},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439519000262/}
}