@incollection{LemkenRohn2010,
  author    = {Lemken, Thomas and Rohn, Holger},
  title     = {Module B1 {"}Sustainable development{"}},
  booktitle = {Euro crafts 21 - qualification and consulting concept},
  publisher = {Manstein},
  address   = {Vienna},
  year      = {2010},
  language  = {en}
}