@Article{ 
  Kov14,
  author = { Kovarik, Hynek },
  title = { Resolvent expansion and time decay of the wave functions for two-dimensional magnetic Schroedinger operators },
  journal = { Comm. Math. Phys. },
  year = { 2015 },
  doi = { 10.1007/s00220-015-2363-3 },
  volume = { 337 },
  pages = { 681–726 },
  URL = { http://cvgmt.sns.it/paper/2383/ },
  note = { cvgmt preprint}
}