13 | -- | 20 | Edward J. Krall. An implementation of on-conditions in LISP |
21 | -- | 36 | B. M. Schwartz. Design and implementation of PL/I preprocessor-based systems |
24 | -- | 44 | Brian A. Wichmann. Estimating the execution speed of an Algol program |
28 | -- | 30 | John G. Fletcher, C. S. Badger, G. L. Boer, G. G. Marshall. On the appropriate language for system programming |
4 | -- | 24 | Leonard Mor, Joseph H. Yott, Hans P. Zima. Progress: a programming language for real-time systems |
41 | -- | 42 | Bernard Lang. A new technique for data monitoring |
9 | -- | 26 | Robert A. Snowdon. PEARL: an interactive system for the preparation and validation of structured programs |
18 | -- | 0 | Christopher J. Shaw. Errata to 1971 November 10 issue |
18 | -- | 0 | Christopher J. Shaw. Errata to 1971 September issue |
19 | -- | 26 | Maurice H. Halstead. Natural laws controlling algorithm structure? |