@article{ZR_1955_Knj_4_a4,
     author = {V. Popovi\'c},
     title = {Sur un {Th\'eor\`eme} de {N.} {Obrechkoff}},
     journal = {Zbornik radova},
     pages = {57 },
     publisher = {mathdoc},
     volume = {Knj_4},
     year = {1955},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZR_1955_Knj_4_a4/}
}