@Article{         Alonso_1999aa,
  author        = {Alonso, Ana and Valli, Alberto},
  file          = {Alonso_1999aa.pdf},
  issn          = {0025-5718},
  journal       = {Mathematics of Computation},
  keywords      = {ddm,time-harmonic,preconditioner},
  langid        = {english},
  pages         = {607--631},
  publisher     = {AMS},
  title         = {An optimal domain decomposition preconditioner for low-frequency time-harmonic {Maxwell} equations},
  volume        = {68},
  year          = {1999},
  shortjournal  = {Math. Comput.}
}