These are available from the Barker Library:
- "A PL/1 subset for a minicomputer", Seth Steinberg, 1974. link
- "The impact of thirty-two bit minicomputers on interactive graphics", Seth Steinberg, 1976. link
- " Dynamic linking in a small address space", Michael Kazar, 1978. link
- "A display-oriented debugger for PL/I", Richard Kovalcik, 1979. link