Bernadette D. Domoloan, Sergio R. Canoy, Jr.
      2-Domination and restrained 2-domination in graphs
      Applied Mathematical Sciences, Vol. 9, 2015, no. 114, 5651-5659
      http://dx.doi.org/10.12988/ams.2015.54332
Copyright © 2015 Bernadette D. Domoloan and Sergio R. Canoy, Jr. 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.