@article{DCG_1993__9_2_131251,
     author = {A. Vucic and R.T. Zivaljevic},
     title = {Note on a {Conjecture} of {Sierksma.}},
     journal = {Discrete & computational geometry},
     pages = {339--350},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1993},
     zbl = {0784.52007},
     url = {http://geodesic.mathdoc.fr/item/DCG_1993__9_2_131251/}
}