@article{PietschGeueHennebergetal.2003,
  author    = {Ullrich Pietsch and Thomas Geue and Oliver Henneberg and Marina Saphiannikova},
  title     = {X-ray investigations of formation efficiency of buried azobenzene polymer density gratings},
  doi       = {10.1063/1.1554753},
  url       = {http://scitation.aip.org/journals/doc/JAPIAU-ft/vol_93/iss_6/3161_1.html},
  year      = {2003},
}