@Journal{DBLP:journals/tvcg/KlosowskiS01,
   title = {Efficient Conservative Visibility Culling Using the Prioritized-Layered Projection Algorithm},
   author = {James T. Klosowski and Cl{\'a}udio T. Silva},
   year = 2001,
   Journal = {IEEE Trans. Vis. Comput. Graph.},
   Volume = 7,
   Number = 4,
   Pages = {365-379}
}