Nasr Ahmed
      Possible contributions to the bulk Casimir energy in heterotic M-theory
      Advanced Studies in Theoretical Physics, Vol. 8, 2014, no. 24, 1063-1081
      http://dx.doi.org/10.12988/astp.2014.49129

Copyright © 2014 Nasr Ahmed. 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.