@incollection{Weizsaecker1997,
  author    = {Weizs{\"a}cker, Ernst U. von},
  title     = {The educational challenge of the environmental crisis},
  booktitle = {Computer based environmental studies},
  editor    = {Bosler, Ulrich},
  publisher = {Inst. f{\"u}r die P{\"a}dagogik der Naturwissenschaften},
  address   = {Kiel},
  pages     = {25 -- 35},
  year      = {1997},
  language  = {en}
}