Wei-Shih Du
      A new common fixed point theorem for restraint systems of mappings
      Applied Mathematical Sciences, Vol. 12, 2018, no. 28, 1367-1372
      https://doi.org/10.12988/ams.2018.810143

Copyright © 2018 Wei-Shih Du. 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.