Louis P. A. Robichaud Yves Ouellet Gerard Simian APL[LAVAL] used as an interactive tool for the description, simulation and micro-programming of digital computers. 282-291 1975 APL https://doi.org/10.1145/800117.803818 conf/apl/1975 db/conf/apl/apl1975.html#RobichaudOS75