@article {MR1675261,
    AUTHOR = {Cai, Xiao-Chuan and Dryja, Maksymilian and Sarkis, Marcus},
     TITLE = {Overlapping nonmatching grid mortar element methods for
              elliptic problems},
   JOURNAL = {SIAM J. Numer. Anal.},
  FJOURNAL = {SIAM Journal on Numerical Analysis},
    VOLUME = {36},
      YEAR = {1999},
    NUMBER = {2},
     PAGES = {581--606},
      ISSN = {0036-1429},
   MRCLASS = {65N30 (65F10)},
  MRNUMBER = {1675261 (2000a:65142)},
MRREVIEWER = {Eun-Jae Park},
       DOI = {10.1137/S0036142997323582},
       URL = {http://dx.doi.org/10.1137/S0036142997323582},
}