@article{etna_vol5_pp48-61,
  author  = {Andreas Frommer and Hartmut Schwandt and Daniel B. Szyld},
  title   = {Asynchronous weighted additive Schwarz methods},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {5},
  year    = {1997},
  pages   = {48--61},
}