↑Richard M. Karp et Richard J. Lipton, « Some Connections Between Nonuniform and Uniform Complexity Classes », Proceedings of the Twelfth Annual ACM Symposium on Theory of Computing, ACM, sTOC '80, , p. 302–309 (ISBN9780897910170, DOI10.1145/800141.804678, lire en ligne, consulté le )