Qinhua Wu, Chahn Yong Jung, Shin Min Kang
      Positive solutions and iterative approximations for a second order difference equation
      International Journal of Mathematical Analysis, Vol. 9, 2015, no. 13, 599-609
      http://dx.doi.org/10.12988/ijma.2015.511
Copyright © 2015 Qinhua Wu, Chahn Yong Jung and Shin Min Kang. 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.