@article{ZR_1955_Knj_4_1_a9,
     author = {Bogdan Baj\v{s}anski},
     title = {Sur les {Z\'eros} de la {D\'eriv\'ee} {d'Une} {Fonction} {Rationnelle}},
     journal = {Zbornik radova},
     pages = {131 - 134},
     publisher = {mathdoc},
     volume = {Knj. 4},
     number = {1},
     year = {1955},
     url = {http://geodesic.mathdoc.fr/item/ZR_1955_Knj_4_1_a9/}
}