HV/VH Trees: A New Spatial Data Structure for Fast Region Queries. - Glenn G. Lai; Donald S. Fussell; D. F. Wong 001 (DAC, 1993)

Hinted quad trees for VLSI geometry DRC based on efficient searching for neighbors. - Glenn G. Lai; Donald S. Fussell; Martin D. F. Wong (IEEE Trans. Comput. Aided Des. Integr. Circuits Syst., 1996)