A CAD System Based on Spherical Dual Representations. - John W. Roach; Praveen K. Paripati; Jeffrey S. Wright (Computer, 1987)

Model-based object recognition using a large-field passive tactile sensor. - John W. Roach; Praveen K. Paripati; Michael Wade (IEEE Trans. Syst. Man Cybern., 1989)

Representing Polyhedra: Faces Are Better Than Vertices. - Lenwood S. Heath; Praveen K. Paripati; John W. Roach (Comput. Geom., 1993)