@article{ARM_1968_4_3_a0,
     author = {Res, Ivo},
     title = {Asymptotische {Formeln} f\"ur die {L\"osungen} der linearen {Differentialgleichungen} dritter {Ordnung}},
     journal = {Archivum mathematicum},
     pages = {133--139},
     year = {1968},
     volume = {4},
     number = {3},
     mrnumber = {0268464},
     zbl = {0235.34020},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/ARM_1968_4_3_a0/}
}