LOGOS: An APL programming environment. - David B. Allen; Leslie H. Goldsmith; Mark R. Dempsey; Kevin L. Harrell (APL, 1986)

Minnowbrook APL workshop. - Roland H. Pesch; Eugene E. McDonnell; Kenneth E. Iverson; B. Bernecky; David B. Allen (ACM SIGAPL APL Quote Quad, 1986)

System development methodology using LOGOS. - David B. Allen; Mark R. Dempsey; Leslie H. Goldsmith (APL, 1987)