@article{Fricke2006,
  author    = {Werner Fricke},
  title     = {The example of the Nigerian savanna},
  journal   = {Berichte des Sonderforschungsbereichs 268, 8.1996, S. 95-100},
  volume    = {8},
  pages     = {95 -- 98},
  year      = {2006},
}