@article{JRAM_1958__200_150376,
     author = {Klaus P\"oschl},
     title = {\"Uber {Anwachsen} und {Nullstellenverteilung} der ganzen transzendenten {L\"osungen} linearer {Differentialgleichungen.} {II.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {129--139},
     publisher = {mathdoc},
     volume = {200},
     year = {1958},
     zbl = {0083.31003},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1958__200_150376/}
}