S. Robinson Chellathurai, S. Kavitha
      Some bounds on nil private edge domination number of a graph
      International Journal of Mathematical Analysis, Vol. 9, 2015, no. 4, 195-200
      http://dx.doi.org/10.12988/ijma.2015.411375

Copyright © 2014 S. Robinson Chellathurai and S. Kavitha. 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.