ACM President's Letter: where would ACM be without volunteers?
Pages 713-714
Home → Magazine Archive → September 1978 (Vol. 21, No. 9)
ACM President's Letter: where would ACM be without volunteers?
Pages 713-714
An algorithm using symbolic techniques for the Bel-Petrov classification of gravitational fields
Pages 715-717A model for verification of data security in operating systems
Pages 737-749A controlled experiment in program testing and code walkthroughs/inspections
Pages 760-768Event manipulation for discrete simulations requiring large numbers of events
Pages 777-785Real time plotting of approximate contour maps
Pages 788-790
Pages 796-797
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