@article{4770,
  author       = {Ewing, Richard E. and Petrova, Svetozara and Vassilevski, Panayot S.},
  issn         = {1095-7197},
  journal      = {SIAM Journal on Scientific Computing},
  number       = {1},
  pages        = {149--163},
  publisher    = {Society for Industrial & Applied Mathematics (SIAM)},
  title        = {{Two-Level Local Refinement Preconditioners for Nonsymmetric and Indefinite Elliptic Problems}},
  doi          = {10.1137/0915010},
  volume       = {15},
  year         = {1994},
}