@article{CMH_1961__36_139234,
     author = {Hans Egli},
     title = {\"Uber vektorielle {Differentialgleichungen} erster {Ordnung} mit konstanten {Koeffizienten.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {154--180},
     publisher = {mathdoc},
     volume = {36},
     year = {1961},
     zbl = {0242.34008},
     url = {http://geodesic.mathdoc.fr/item/CMH_1961__36_139234/}
}