AOIPS - An interactive image processing system. - Peter A. Bracken; John T. Dalton; John J. Quann; James B. Billingsley (AFIPS National Computer Conference, 1978)

Interactive color map displays of domestic information. - John T. Dalton; James B. Billingsley; John J. Quann; Peter A. Bracken (SIGGRAPH, 1979)