@article{KJM_2011_35_2_a4,
     author = {J. Katona and E. Moln\'ar and I. Prok and J. Szirmai},
     title = {Higher-dimensional central projection into 2-plane with visibility and applications},
     journal = {Kragujevac Journal of Mathematics},
     pages = {249 },
     publisher = {mathdoc},
     volume = {35},
     number = {2},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2011_35_2_a4/}
}