@article{WallbaumRitthoffLiedtke1999,
  author    = {Wallbaum, Holger and Ritthoff, Michael and Liedtke, Christa},
  title     = {Ressourcenschonende Fenster},
  journal   = {Das Magazin / Wissenschaftszentrum Nordrhein-Westfalen},
  volume    = {10},
  number    = {1},
  pages     = {32},
  year      = {1999},
  language  = {de}
}