@article{AFM_1986_11_2_a9,
     author = {Gary G. Gundersen},
     title = {On the real zeros of solutions of f'' + {A(z)f} = 0 where {A(z)} is entire},
     journal = {Annales Fennici Mathematici},
     pages = {275--294},
     publisher = {mathdoc},
     volume = {11},
     number = {2},
     year = {1986},
     doi = {10.5186/aasfm.1986.1105},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1986.1105/}
}