@incollection {MR2099424,
    AUTHOR = {Sarkis, M.},
     TITLE = {Partition of unity coarse spaces: enhanced versions,
              discontinuous coefficients and applications to elasticity},
 BOOKTITLE = {Domain decomposition methods in science and engineering},
     PAGES = {149--158 (electronic)},
 PUBLISHER = {Natl. Auton. Univ. Mex., M\'exico},
      YEAR = {2003},
   MRCLASS = {65N55 (65N30 74G15)},
  MRNUMBER = {2099424},
}