Issue No.02 - March (1982 vol.2)
C.M. Brown , University of Rochester
Academia, business, and government joined forces to produce PADL-2, a flexible, extensible geometric solid modeling system. P2/MM is its current implementation; an improved version is under development.
C.M. Brown, "PADL-2: A Technical Summary", IEEE Computer Graphics and Applications, vol.2, no. 2, pp. 69-84, March 1982, doi:10.1109/MCG.1982.1674167