Linear octrees by volume intersection. - B. Lavakusha; Arun K. Pujari; P. G. Reddy (Comput. Vis. Graph. Image Process., 1989)

Polygonal representation by edge k-d trees. - B. Lavakusha; Arun K. Pujari; P. G. Reddy (Pattern Recognit. Lett., 1990)