A Comment on Optimal Tree Structures CACM October, 1969 Stanfel, L. E. information retrieval, file searching, tree structures, double chaining 3.70 3.73 3.74 CA691015 JB February 15, 1978 1:31 PM 1831 5 1831 1831 5 1831 1831 5 1831 2257 5 1831 2360 5 1831 849 6 1831 849 6 1831 1831 6 1831 1831 6 1831 1936 6 1831 1936 6 1831 2360 6 1831