A. C. Jost Richard E. Bolz G. Topping Adventures in PASCAL - the academy approach. 143-147 1983 SIGCSE https://doi.org/10.1145/800038.801036 https://doi.org/10.1145/952978.801036 conf/sigcse/1983 db/conf/sigcse/sigcse1983.html#JostBT83