@article{PIM_1938_Tom_VI-VII_a4,
     author = {Vojislav G. Avukumovi\'c},
     title = {Uber die {Anzahl} der {Zahlen} \ensuremath{\equiv}{\textemdash}1 (mod.d) die keinen {Primteiler} derselben {Form} haben},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {48 },
     publisher = {mathdoc},
     volume = {Tom_VI-VII},
     year = {1938},
     url = {http://geodesic.mathdoc.fr/item/PIM_1938_Tom_VI-VII_a4/}
}