@incollection{Schallaboeck1997,
  author    = {Schallab{\"o}ck, Karl Otto},
  title     = {Tourism, transport and ecology},
  booktitle = {Tourism and sustainable development},
  editor    = {Hein, Wolfgang},
  publisher = {Dt. {\"U}berseeinst.},
  address   = {Hamburg},
  pages     = {339 -- 357},
  year      = {1997},
  language  = {en}
}