1. Crabtree , Charles , and Dennis Lyman II , “ Correlated Distribution Simulation for Capital Budgeting ,”. Proceedings of 3rd Conference on Applications of Simulation , Los Angeles , December 1969 , pp. 302 – 12 , published by Association for Computing Machinery .
2. Ebeling , D. G. , and E. G. , Hurst , Jr. “ PA3.A General Purpose, Time-Shared Problem Analysis Language ,”. Proceedings of 3rd Conference on Applications of Simulation , Los Angeles , December 1969 , pp. 12 – 23 , published by Association of Computing Machinery .
3. Gershefski , George and A. J. Phipps , “ A Higher Order Computer Language for Risk Analysis ,”. Proceedings of 6th Triennial Symposium on Engineering Economy , Annapolis , Maryland , June 1971 , published byThe Engineering Economis.