@Article{ 
  BriKovRai14,
  author = { Briet, Philippe and Kovarik, Hynek and Raikov, Georgi },
  title = { Scattering in twisted waveguides  },
  journal = { J. Funct. Anal. },
  year = { 2014 },
  doi = { 10.1016/j.jfa.2013.09.026 },
  volume = { 266 },
  pages = { 35 },
  URL = { http://cvgmt.sns.it/paper/2319/ },
  note = { cvgmt preprint}
}