@incollection {MR1962682,
    AUTHOR = {Sarkis, Marcus},
     TITLE = {Partition of unity coarse spaces and {S}chwarz methods with
              harmonic overlap},
 BOOKTITLE = {Recent developments in domain decomposition methods
              ({Z}\"urich, 2001)},
    SERIES = {Lect. Notes Comput. Sci. Eng.},
    VOLUME = {23},
     PAGES = {77--94},
 PUBLISHER = {Springer},
   ADDRESS = {Berlin},
      YEAR = {2002},
   MRCLASS = {65N30 (65N55)},
  MRNUMBER = {1962682},
}