@article{MZ_1989__201_4_174055,
     author = {Norbert Steinmetz},
     title = {Exceptional {Values} of {Solutions} of {Linear} {Differential} {Equations.}},
     journal = {Mathematische Zeitschrift},
     pages = {317--326},
     publisher = {mathdoc},
     volume = {201},
     number = {4},
     year = {1989},
     zbl = {0692.34006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1989__201_4_174055/}
}