E. M. Solouma, M. M. Wageeda
      Investigation of non-lightlike tubular surfaces with Darboux frame in Minkowski 3-space
      Nonlinear Analysis and Differential Equations, Vol. 4, 2016, no. 10, 493-502
      http://dx.doi.org/10.12988/nade.2016.6752

Copyright © 2016 E. M. Solouma and M. M. Wageeda. 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.