@article{HippiusWuerthnerBolte2009,
  author    = {Catharina Hippius and Frank W{\"u}rthner and Michael Bolte},
  title     = {5-Bromo-17-nitro-26,28-prop-2-enoxy-25,27-dipropoxycalix[4]arene},
  journal   = {Acta crystallographica / Section E, Structure reports online},
  volume    = {65},
  number    = {o617},
  doi       = {10.1107/S160053680900659X},
  year      = {2009},
}