TY - RPRT TI - Expected O(N) and O(N??�) algorithms for constructing Voronoi diagrams in two and three dimensions AU - Bernal, Javier PY - 1987 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 87-3679 DO - 10.6028/NBS.IR.87-3679 ER -