Michael C. Fulkerson
      Size estimates on perfect order subset groups having trivial sylow 5- and 7-subgroups
      International Mathematical Forum, Vol. 11, 2016, no. 13, 615-621
      http://dx.doi.org/10.12988/imf.2016.6561

Copyright © 2016 Michael C. Fulkerson. This article is distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.