@article{CMH_1939__12_138733,
     author = {Ta Li},
     title = {\"Uber die allgemeine lineare {Differentialgleichung.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {1--19},
     year = {1939},
     volume = {12},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/CMH_1939__12_138733/}
}