@article{MM2_1978__24_154548,
     author = {Otto Knab},
     title = {\"Uber das {Anwachsen} der {L\"osungen} linearer {Differentialgleichungen} mit rationalen {Koeffizienten} in {Winkelr\"aumen.}},
     journal = {Manuscripta mathematica},
     pages = {295--322},
     publisher = {mathdoc},
     volume = {24},
     year = {1978},
     zbl = {0405.34008},
     url = {http://geodesic.mathdoc.fr/item/MM2_1978__24_154548/}
}