R1 Revisited: Four Years in the Trenches. - John P. McDermott; Judith Bachant (AI Mag., 1984)

Doing R1 with Style. - Arnold van de Brug; Judith Bachant; John P. McDermott (CAIA, 1985)

The Taming of R1. - Arnold van de Brug; Judith Bachant; John P. McDermott (IEEE Expert, 1986)