Efficient algorithm to detect collision between deformable B-spline surfaces for virtual sculpting. - Harish Pungotra; George K. Knopf; Roberto Canas (Comput. Aided Des., 2008)

Merging multiple B-spline surface patches in a virtual reality environment. - Harish Pungotra; George K. Knopf; Roberto Canas (Comput. Aided Des., 2010)