A hierarchical Hex-tree representational technique for solid modelling. - Ramesh C. Joshi; H. Darbari; S. Goel; Sasikumaran Sasikumaran (Comput. Graph., 1988)

A Simulation-based Method for the Process to Allow Continuous Tracking of Quality, Cost, and Time. - S. Goel; D. R. Strong; N. Richards; N. C. Goel (Simul., 2002)