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- [2] Consecutive up-down patterns in up-down permutations ELECTRONIC JOURNAL OF COMBINATORICS, 2014, 21 (03):
- [7] Up-down ternary strings Grimaldi, Ralph P. (ralph.grimaldi@rose-hulman.edu), 2018, Charles Babbage Research Centre (104):
- [10] SYNTHESIS OF UP-DOWN COUNTERS IEEE TRANSACTIONS ON ELECTRONIC COMPUTERS, 1967, EC16 (02): : 146 - &