Nazarchuk, V. V.; Sushchanskij, V. I. Groups of periodically defined permutations on a countable set. (Russian. English summary) Zbl 1024.20001 Mat. Stud. 19, No. 2, 115-126 (2003). MSC: 20B07 20E45 20E15 PDFBibTeX XMLCite \textit{V. V. Nazarchuk} and \textit{V. I. Sushchanskij}, Mat. Stud. 19, No. 2, 115--126 (2003; Zbl 1024.20001)
Protasov, I. V. Decomposability of permutation groups. (Russian) Zbl 0927.54038 Mat. Stud. 6, 131-134 (1996). MSC: 54H11 20B07 PDFBibTeX XMLCite \textit{I. V. Protasov}, Mat. Stud. 6, 131--134 (1996; Zbl 0927.54038)