M.M.A. El-sheikh, A.A. Soliman, M.H. Abdalla, A.M. Hassan
      New oscillation criteria for second-order neutral delay dynamic equations
      International Journal of Mathematical Analysis, Vol. 11, 2017, no. 19, 945-954
      https://doi.org/10.12988/ijma.2017.79127

Copyright © 2017 M.M.A. El-sheikh, A.A. Soliman, M.H. Abdalla and A.M. Hassan. 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.