@misc {IOPORT.70686556,
    author       = {Farias, Marcus A. C. and Scheidegger, Carlos Eduardo and Comba, Jo\~ao Luiz Dihl and Velho, Luiz},
    title        = {Boolean operations on surfel-bounded objects using constrained BSP-trees},
    howpublished = {SIBGRAPI, 325-332 (2005).},
    year         = {2005},
    identifier   = {70686556},
}