@article {MR2914789,
    AUTHOR = {Dryja, Maksymilian and Galvis, Juan and Sarkis, Marcus},
     TITLE = {Neumann-{N}eumann methods for a {DG} discretization on
              geometrically nonconforming substructures},
   JOURNAL = {Numer. Methods Partial Differential Equations},
  FJOURNAL = {Numerical Methods for Partial Differential Equations. An
              International Journal},
    VOLUME = {28},
      YEAR = {2012},
    NUMBER = {4},
     PAGES = {1194--1226},
      ISSN = {0749-159X},
   MRCLASS = {65N30 (65F08 65N22 65N55)},
  MRNUMBER = {2914789},
       DOI = {10.1002/num.20678},
       URL = {http://dx.doi.org/10.1002/num.20678},
}