@article{10_21136_CMJ_1968_100828,
     author = {Hastings, Stuart P. and Lazer, Alan C.},
     title = {On the asymptotic behavior of solutions of the differential equation $y^{(4)}=p(t)y$},
     journal = {Czechoslovak Mathematical Journal},
     pages = {224--229},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1968},
     doi = {10.21136/CMJ.1968.100828},
     mrnumber = {0226110},
     zbl = {0157.14901},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100828/}
}