@book{ BA06318924,
  author    = "Ulrich, M. H. and Kjär, K. and European Southern Observatory and ESO Conference on Scientific Importance of High Angular Resolution at Infrared and Optical Wavelengths",
  title     = "Scientific importance of high angular resolution at infrared and optical wavelengths : ESO conference, Garching, 24-27 March 1981 : proceedings",
  publisher = "European Southern Observatory",
  year      = "1981",
  URL       = "http://ci.nii.ac.jp/ncid/BA06318924"
}