An Interactive Approach to Pipe Routing in Process Plants. - R. G. Newell (IFIP Congress (2), 1971)

A solution to the hidden surface problem. - Martin E. Newell; R. G. Newell; Tom L. Sancha (ACM Annual Conference (1), 1972)

The difference between CAD and GIS. - R. G. Newell; Tom L. Sancha (Comput. Aided Des., 1990)