@article{MAN_1934__109_159690,
     author = {I. Petrowsky},
     title = {\"Uber das {Irrfahrtproblem}},
     journal = {Mathematische Annalen},
     pages = {425},
     publisher = {mathdoc},
     volume = {109},
     year = {1934},
     zbl = {0008.35603},
     language = {un},
     url = {https://geodesic-test.mathdoc.fr/item/MAN_1934__109_159690/}
}