@article{10_4153_CMB_1990_070_5,
     author = {Feldstein, Alan},
     title = {Unstable {Neutral} {Fuctional} {Differential} {Equations}},
     journal = {Canadian mathematical bulletin},
     pages = {428--433},
     year = {1990},
     volume = {33},
     number = {4},
     doi = {10.4153/CMB-1990-070-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-070-5/}
}