@article{ZR_1951_Knj_1_1_a12,
     author = {Stanimir Fempl},
     title = {N\"aherungsformel zur {Mantelberechnung} des {Schiefen} {Kreiskegels}},
     journal = {Zbornik radova},
     pages = {135 - 142},
     publisher = {mathdoc},
     volume = {Knj. 1},
     number = {1},
     year = {1951},
     url = {http://geodesic.mathdoc.fr/item/ZR_1951_Knj_1_1_a12/}
}