@article {MR3109775,
    AUTHOR = {Efendiev, Y. and Galvis, J. and Lazarov, R. and Moon, M. and
              Sarkis, M.},
     TITLE = {Generalized multiscale finite element method. {S}ymmetric
              interior penalty coupling},
   JOURNAL = {J. Comput. Phys.},
  FJOURNAL = {Journal of Computational Physics},
    VOLUME = {255},
      YEAR = {2013},
     PAGES = {1--15},
      ISSN = {0021-9991},
     CODEN = {JCTPAH},
   MRCLASS = {Preliminary Data},
  MRNUMBER = {3109775},
       DOI = {10.1016/j.jcp.2013.07.028},
       URL = {http://dx.doi.org/10.1016/j.jcp.2013.07.028},
}