Levy, Paul Sur deux classes de permutations. (French) Zbl 0033.00702 C. R. Acad. Sci., Paris 228, 1089-1090 (1949). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:Combinatorics PDFBibTeX XMLCite \textit{P. Levy}, C. R. Acad. Sci., Paris 228, 1089--1090 (1949; Zbl 0033.00702)