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| * | 1990 | |
|---|---|---|
| 2 | EE | Guy Barker, Douglas J. Keenan, Herman van Loon: Conscientious Programming Using PMA. APL 1990: 18-26 |
| 1981 | ||
| 1 | Douglas J. Keenan: Surveyor's Forum: Generating Solutions. ACM Comput. Surv. 13(3): 370 (1981) | |
| 1 | Guy Barker | [2] |
| 2 | Herman van Loon | [2] |