Hybrid analog/digital techniques for signal processing applications. - Thomas G. Hagan; Robert Treiber (AFIPS Spring Joint Computing Conference, 1966)

The adage graphics terminal. - Thomas G. Hagan; Richard J. Nixon; Luis J. Schaefer (AFIPS Fall Joint Computing Conference (1), 1968)

The future of computer graphics. - Thomas G. Hagan; Robert H. Stotz (AFIPS Spring Joint Computing Conference, 1972)