@article{PIM_1938_Tom_VI-VII_1_a10,
     author = {Branislav Petronievics},
     title = {Elementare {Ableitung} der nichteuklidischen {Geometrien}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {89 - 112},
     publisher = {mathdoc},
     volume = {Tom VI-VII},
     number = {1},
     year = {1938},
     url = {https://geodesic-test.mathdoc.fr/item/PIM_1938_Tom_VI-VII_1_a10/}
}