Issue No. 01 - January (1980 vol. 13)
S. Crespi-Reghizzi , Istituto di Elettrotecnica ed Elettronica
At least 20 different microprocessor languages are in use today?spawned in part by marketing policies, fashion, and the "not invented here" attitude. Here is an attempt at orderly classification.
S. Crespi-Reghizzi, P. Corti, A. Dapra, "PLZ-SYS PL/65 PL/M RPL/2 Mistral PLZ Special Feature A Survey of Microprocessor Languages", Computer, vol. 13, no. , pp. 48-66, January 1980, doi:10.1109/MC.1980.1653342