@article{AFM_2001_26_2_a11,
     author = {Gary G. Gundersen},
     title = {Solutions of f " + {P(z)f} = 0 that have almost all real zeros},
     journal = {Annales Fennici Mathematici},
     pages = {483--488},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2001_26_2_a11/}
}