Generation of Permutations in Lexicographic Order (Algorithm 323 [G6]) CACM September, 1969 Leitch, I. M. permutations, direct lexicographic order, reverse lexicographic order, lexicographic generation 5.39 CA690905 JB February 15, 1978 4:48 PM 1850 5 1850 1850 5 1850 1850 5 1850