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@article{ZR_1955_Knj_4_1_a4, author = {V. Popovi\'c}, title = {Sur un {Th\'eor\`eme} de {N.} {Obrechkoff}}, journal = {Zbornik radova}, pages = {57 - 62}, publisher = {mathdoc}, volume = {Knj. 4}, number = {1}, year = {1955}, url = {http://geodesic.mathdoc.fr/item/ZR_1955_Knj_4_1_a4/} }
V. Popović. Sur un Théorème de N. Obrechkoff. Zbornik radova, Knj. 4 (1955) no. 1. http://geodesic.mathdoc.fr/item/ZR_1955_Knj_4_1_a4/