@article{Seidl98Constraints,
  author = {Helmut Seidl and Morten Heine S\orensen},
  title = {Constraints to {S}top {D}eforestation},
  journal = {Sci. Comput. Program.},
  year = 1998,
  pages = {73-107},
  volume = {32},
  number = {1-3},
}