Star's envoling design environment: a user's perspective on CAE. - Gary B. Goates; Patrick M. Hefferan; Robert J. Smith 001; Randy Harris (DAC, 1985)

The STE-264 accelerated electronic CAD system. - Patrick M. Hefferan; Robert J. Smith 001; Val Burdick; Donald L. Nelson (DAC, 1985)

Acquiring and Maintaining State-of-the-Art DA Systems. - Patrick M. Hefferan; Steve Sapiro (DAC, 1992)