@article{PIM_1935_Tom_IV_a0,
     author = {Georges Kurepa},
     title = {Ensembles ordonnes et ramifies},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {1 },
     publisher = {mathdoc},
     volume = {Tom_IV},
     year = {1935},
     url = {http://geodesic.mathdoc.fr/item/PIM_1935_Tom_IV_a0/}
}