Mario Gionfriddo
      Existence of dodecagon quadrangle systems having index \lambda>1
      Applied Mathematical Sciences, Vol. 10, 2016, no. 29, 1403-1411
      http://dx.doi.org/10.12988/ams.2016.510643

Copyright © 2015 Mario Gionfriddo. 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.