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1مؤتمر
المؤلفون: Levy, Samuel, Doyle, Richard H., Heller, Ralph M.
المصدر: AFIPS Joint Computer Conferences; May1974, p279-284, 6p
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2مؤتمر
المؤلفون: Levy, Samuel, Doyle, Richard H., Heller, Ralph M.
المصدر: Proceedings of the May 6-10, 1974, National Computer Conference & Exposition; 5/ 6/1974, p279-284, 6p