@article{MV_1967_19_3_a18,
     author = {S. Fempl},
     title = {Uber eine dem schiefen {Kreiskegel} zugeordnete {Kugelflache}},
     journal = {Matemati\v{c}ki vesnik},
     pages = {316 },
     year = {1967},
     volume = {19},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/MV_1967_19_3_a18/}
}