Publisher
Springer Science and Business Media LLC
Reference3 articles.
1. D. W. Hall,On a decomposition of true cyclic elements, Trans. Amer. Math. Soc.,47, (1940), 305–321.
2. C. Kuratowski,Topologie II, Warszawa, (1952), 231–251.
3. G. T. Whyburn,Cyclic elements of higher orders, American Journal of Mathematics,56, (1934), 133–146.