Bergquist, Gary A. (1999). «The future of APL in the insurance world». ACM SIGAPL APL Quote Quad (New York, N.Y.) 30 (1): 16–21. doi:10.1145/347194.347203. ISSN0163–6006.
Bergquist, Gary A. (1999). «The future of APL in the insurance world». ACM SIGAPL APL Quote Quad (New York, N.Y.) 30 (1): 16–21. doi:10.1145/347194.347203. ISSN0163–6006.